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Razer Blade Stealth (i7-8565U, GeForce MX150) Laptop Review

An Ultrabook for gamers. The new Blade Stealth proves that not all GeForce MX150 GPUs are created equal. It's the fastest 13.3-inch Ultrabook we've tested with graphics performance just shy of a GTX 960M all in a sleek package the size of a MacBook Pro 13.

The Blade Stealth series is Razer's version of the common Ultrabook. Whereas the Blade 14, Blade 15, and Blade Pro series are first and foremost ultra-thin gaming laptops, the Blade Stealth utilizes ULV CPUs to compete directly against brandname flagship Ultrabooks including the Dell XPS 13, HP Spectre 13, Huawei MateBook X Pro, Asus Zenbook UX433, Lenovo Yoga C930, Samsung Series 9 NP900X3N, and the MacBook Pro 13 by extension.

What makes this latest Blade Stealth so different from the competition isn't the narrow-bezel design as all the aforementioned Windows alternatives also incorporate narrow bezels in some way. Instead, it's the discrete full-power GeForce MX150 GPU that gives the Razer Ultrabook a notable graphical edge. Users who want the form factor of a sleek Ultrabook but with the graphics prowess to play the latest eSports titles should find the new Razer more appealing.

Current configurations include the Whiskey Lake-U Core i7-8565U CPU with 8 GB of RAM, integrated UHD 620 graphics, 256 GB M.2 SATA SSD, and 1080p display for $1400 USD up to the Core i7-8565U with 16 GB of RAM, GeForce MX150 graphics, 512 GB M.2 NVMe SSD, and 4K UHD touchscreen for $1900 USD. Our test model today is the middle option with the Core i7 CPU, MX150 GPU, and 1080p panel.

(February 11, 2019 update: Razer has new BIOS and EC software updates for users experiencing charging issues and/or electronic noise. We recommend contacting Razer support services for the download link.)

More Razer Blade reviews:

(Source: Razer)
(Source: Razer)
Razer Blade Stealth i7-8565U (Blade Stealth Series)
Graphics adapter
NVIDIA GeForce MX150 - 4096 MB, Core: 1468 MHz, Memory: 6008 MHz, GDDR5, 416.34, Optimus
Memory
16384 MB 
, 1200 MHz, 10-10-10-28, Dual-Channel, Soldered
Display
13.3 inch 16:9, 1920 x 1080 pixel 166 PPI, Sharp LQ133M1JW41, IPS, SHP14B8, glossy: no
Mainboard
Intel Cannon Lake-U PCH-LP Premium
Storage
Lite-On CA3-8D256-Q11,
Soundcard
Intel Cannon Lake-LP - cAVS
Connections
4 USB 3.0 / 3.1 Gen1, 1 USB 3.1 Gen2, 1 Thunderbolt, 2 DisplayPort, Audio Connections: 3.5 mm combo, Brightness Sensor
Networking
Intel Wireless-AC 9560 (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5), Bluetooth 5
Size
height x width x depth (in mm): 14.8 x 304.6 x 210 ( = 0.58 x 11.99 x 8.27 in)
Battery
53.1 Wh Lithium-Polymer
Operating System
Microsoft Windows 10 Home 64 Bit
Camera
Webcam: 720p, Windows Hello
Additional features
Speakers: Stereo, 4 Speakers + Smart Amp, Keyboard: Chiclet, Chroma, Keyboard Light: yes, Razer Synapse, 12 Months Warranty
Weight
1.31 kg ( = 46.21 oz / 2.89 pounds), Power Supply: 284 g ( = 10.02 oz / 0.63 pounds)
Price
1600 USD
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Case

The Blade Stealth with Whiskey Lake-U is a complete design overhaul from the previous Kaby Lake SKUs. As detailed in our preview of the new laptop, Razer has essentially downscaled its 15.6-inch Blade 15 chassis to fit a 13.3-inch screen size. The texture, material, and look of the system are consequently nearly the same as the Blade 15 including the move to a colorless logo.

Rigidity is excellent with no creaking around the base or lid. We're impressed by how stiff the thin base can be when compared to something like an Asus Zenbook UX3430. Applying pressure on the center of the keyboard flexes it just slightly. The lid is a bit more flexible than the lids of the XPS 13 or Zenbook UX433, but it's nowhere near as bad as the lids of the Samsung Notebook 9 NP900 or LG Gram 13. The long bar hinge is sufficiently firm to prevent teetering whilst typing or transporting.

Construction quality appears to be flawless from top to bottom with no unintended gaps or visual defects on our test unit. it may not be perfect, however, as we experienced a charging issue as detailed in our Battery Life section below. The system is a visual delight nonetheless as we've come to expect from a Razer product. The inevitable fingerprint buildup on the smooth anodized matte surfaces is generally easy to wipe down with the included cleaning cloth.

Razer laptops tend to appeal more to Mac lovers than the typical Windows laptop and a quick look at its dimensions shows why. The new Blade Stealth is almost identical to the MacBook Pro 13 in terms of volume and weight for similar first impressions. The new narrow bezels help the system shave off nearly 16 mm in length for a smaller footprint when compared to the last generation Blade Stealth design. Thickness has actually increased by 1 mm likely because of the new dedicated GPU.

Same CNC anodized aluminum material as the Blade 15 series
Same CNC anodized aluminum material as the Blade 15 series
Corner power button similar to many Asus laptops. No fingerprint features are included
Corner power button similar to many Asus laptops. No fingerprint features are included
Fingerprints accumulate very quickly on the smooth matte surfaces
Fingerprints accumulate very quickly on the smooth matte surfaces
Display opened to maximum of 150 degrees
Display opened to maximum of 150 degrees
321 mm / 12.6 inch 206 mm / 8.11 inch 13.8 mm / 0.543 inch 1.4 kg2.98 lbs307 mm / 12.1 inch 218 mm / 8.58 inch 13.8 mm / 0.543 inch 1.3 kg2.76 lbs304.6 mm / 12 inch 210 mm / 8.27 inch 14.8 mm / 0.583 inch 1.3 kg2.89 lbs304.1 mm / 12 inch 212.4 mm / 8.36 inch 14.9 mm / 0.587 inch 1.4 kg3.02 lbs304 mm / 12 inch 217 mm / 8.54 inch 14.6 mm / 0.575 inch 1.3 kg2.93 lbs302 mm / 11.9 inch 199 mm / 7.83 inch 11.6 mm / 0.4567 inch 1.2 kg2.68 lbs

Connectivity

Ports are identical to the last generation Blade Stealth except that HDMI has been dropped in favor of a USB Type-C Gen. 2 port. Owners may have to invest in an adapter or another cable for outputting to an external monitor.

Both USB Type-C ports are capable of charging the system, but only the right port is compatible with Thunderbolt 3 docking stations including the Razer Core.

As far as missing ports go, we're a bit bummed to see no integrated SD card reader, Kensington Lock, or HDMI. Competing Ultrabooks like the HP Spectre x360 13 have the advantage in this regard.

Front: No connectivity
Front: No connectivity
Right: USB Type-A 3.1, Thunderbolt 3
Right: USB Type-A 3.1, Thunderbolt 3
Rear: No connectivity
Rear: No connectivity
Left: USB Type-C 3.1 Gen. 2, USB Type-A 3.1
Left: USB Type-C 3.1 Gen. 2, USB Type-A 3.1

Communication

WLAN and Bluetooth 5 are provided by an Intel 9560 for transfer rates of up to 1.73 Gbps. Our test server is limited by a 1 Gbps line so performance can be faster than what we've recorded below. Unlike the Killer 1550, the Intel 9560 does not include special network prioritization software or features for hardcore gamers. We otherwise experienced no wireless issues during our time with the test unit.

Serviceable M.2 WLAN module
Serviceable M.2 WLAN module
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Apple MacBook Pro 13 2018 Touchbar i5
802.11 a/b/g/n/ac
752 (min: 651, max: 774) MBit/s ∼100% +18%
Dell XPS 13 9370 i7 UHD
Killer Wireless-n/a/ac 1435 Wireless Network Adapter
665 MBit/s ∼88% +4%
Lenovo Yoga C930-13IKB
Intel Wireless-AC 9260
638 (min: 401, max: 679) MBit/s ∼85% 0%
Razer Blade Stealth i7-8565U
Intel Wireless-AC 9560
638 MBit/s ∼85%
iperf3 Client (transmit) TCP 1 m 4M x10
Lenovo Yoga C930-13IKB
Intel Wireless-AC 9260
657 (min: 602, max: 709) MBit/s ∼100% +2%
Razer Blade Stealth i7-8565U
Intel Wireless-AC 9560
643 MBit/s ∼98%
Apple MacBook Pro 13 2018 Touchbar i5
802.11 a/b/g/n/ac
598 (min: 271, max: 625) MBit/s ∼91% -7%
Dell XPS 13 9370 i7 UHD
Killer Wireless-n/a/ac 1435 Wireless Network Adapter
504 MBit/s ∼77% -22%

Accessories

Extras include a few Razer logo stickers and a small cleaning cloth in addition to the usual Quick Start guide and warranty card. A USB Type-C to HDMI or Ethernet adapter would have been appreciated.

The Razer Core eGPU is once again compatible. We expect performance to be better than the last generation Blade Stealth with Core i7-8550U since the i7-8565U in the new Blade Stealth does not throttle as heavily.

Maintenance

The bottom panel requires a T5 Torx wrench similar to other Blade laptops. Access is straightforward even though upgrade options are limited.

2018 Blade Stealth
2018 Blade Stealth
2016 Blade Stealth for comparison
2016 Blade Stealth for comparison

Warranty

The standard one-year limited warranty applies. Please see our Guarantees, Return policies and Warranties article for country-specific information. We're hopeful that Razer will consider two-year warranty in the future as standard much like for laptops from Aorus or EVGA. 

Input Devices

Keyboard

The main QWERTY keys are identical in feedback and material to the keys on the Blade 15. This isn't necessarily positive, however, as we find the keys on the Blade 15 to be too shallow and light especially for a gaming laptop. Keys on competing Ultrabooks like the Spectre x360 13 or MateBook X Pro have firmer feedback when pressed for a better typing experience.

One notable drawback to the Blade Stealth keyboard is its short length due to the side speaker grilles. As a result, the forward slash, Enter, Shift, and Backspace keys have been shortened significantly and so the keyboard can feel a bit cramped to use. At least the Directional keys are full-size which is an uncommon sight on subnotebooks.

A single-zone RGB backlight is included unlike the per-key RGB backlight of the outgoing Blade Stealth generation. Razer says the change was done mainly to improve on battery life. We can appreciate that all key symbols are illuminated unlike on the Blade 15 backlight.

Touchpad

The trackpad (11.1 x 7.1 mm) is larger than the trackpad on the XPS 13 (10.5 x 6.0 cm) while being smaller than the one on the MateBook X Pro (12.0 x 7.8 cm). Its surface is completely smooth with no finger sticking even if gliding across very slowly. Pushing down on its center will not cause any significant flexing issues.

The integrated mouse keys are very shallow in travel with spongy feedback and just a soft audible click when pressed. It could have definitely benefited from firmer tactility for a more satisfactory click.

The speaker grilles take valuable space away from the keyboard
The speaker grilles take valuable space away from the keyboard
Similar key feedback and travel to the Blade 15
Similar key feedback and travel to the Blade 15

Display

Users have the option between matte FHD or glossy 4K UHD touchscreen with the promise of individually factory calibrated screens across all SKUs. Our FHD test configuration utilizes a Sharp LQ133M1JW41 IPS panel found on no other laptop in our database. Brightness and contrast ratio are both above average at about 400 nits average and 1300:1, respectively, compared to 300 nits and ~1000:1 on competing models. Colors are vibrant and texts appear crisp with almost no graininess. We can imagine that the glossy 4K UHD option would appear even sharper than our matte unit.

As nice as the screen may be, it has one major shortcoming. Response times are slow for noticeably more ghosting when gaming. In fairness, competing Ultrabooks also have slow black-white and gray-gray response times as well, but since the new Blade Stealth doubles as a small gaming laptop, faster response times are much more desirable. Quick-moving titles like Overwatch suffer more from ghosting when compared to titles like LoL or DOTA 2.

We are able to detect pulse-width modulation on brightness levels up to 24 percent. Thankfully, the frequency is very high and so most users will not notice. The keyboard backlight does not appear to exhibit PWM unlike on the larger Blade Pro.

Uneven backlight bleeding is minimal and generally unnoticeable on our test unit.

Matte FHD display or glossy 4K UHD touchscreen
Matte FHD display or glossy 4K UHD touchscreen
Same 4.9 mm bezel thickness as on the Blade 15
Same 4.9 mm bezel thickness as on the Blade 15
Almost no uneven backlight bleeding around the edges or corners
Almost no uneven backlight bleeding around the edges or corners
Subpixel array (166 PPI)
Subpixel array (166 PPI)
391.8
cd/m²
396.3
cd/m²
404.5
cd/m²
383.1
cd/m²
429.8
cd/m²
389.9
cd/m²
402.7
cd/m²
421.4
cd/m²
410.2
cd/m²
Distribution of brightness
Sharp LQ133M1JW41
X-Rite i1Pro 2
Maximum: 429.8 cd/m² Average: 403.3 cd/m² Minimum: 17.48 cd/m²
Brightness Distribution: 89 %
Center on Battery: 429.8 cd/m²
Contrast: 1343:1 (Black: 0.32 cd/m²)
ΔE Color 1.08 | 0.6-29.43 Ø6, calibrated: 1.21
ΔE Greyscale 1.3 | 0.64-98 Ø6.2
96.3% sRGB (Argyll 3D) 61.4% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.23
Razer Blade Stealth i7-8565U
Sharp LQ133M1JW41, IPS, 13.3, 1920x1080
Razer Blade Stealth QHD i7-7500U
Sharp SHP142F (LQ125T1JW02), , 12.5, 2560x1440
Dell XPS 13 9370 i7 UHD
ID: Sharp SHP148B, Name: LQ133D1, Dell P/N: 8XDHY, IPS, 13.3, 3840x2160
Apple MacBook Pro 13 2018 Touchbar i5
APPA03E, IPS, 13.3, 2560x1600
HP Spectre x360 13t-ae000
LGD0588, IPS, 13.3, 3840x2160
Lenovo Yoga C930-13IKB
B139HAN03_0, IPS, 13.9, 1920x1080
Response Times
-20%
-44%
148%
8%
24%
Response Time Grey 50% / Grey 80% *
57.6 (29.2, 28.4)
37 (19, 18)
36%
69.6 (32.4, 37.2)
-21%
46 (21, 25)
20%
51.6 (25.6, 26)
10%
40.8 (20.4, 20.4)
29%
Response Time Black / White *
34 (17.6, 16.4)
33.4 (13.2, 20.2)
2%
44 (24.4, 19.6)
-29%
32 (17, 15)
6%
32.4 (16.4, 16)
5%
27.6 (15.6, 12)
19%
PWM Frequency
22730 (24)
200 (30)
-99%
3759 (20)
-83%
118000 (75, 150)
419%
Screen
-64%
-37%
3%
-27%
-123%
Brightness middle
429.8
402
-6%
478.5
11%
519
21%
329.8
-23%
316
-26%
Brightness
403
382
-5%
466
16%
504
25%
318
-21%
291
-28%
Brightness Distribution
89
88
-1%
86
-3%
95
7%
74
-17%
83
-7%
Black Level *
0.32
0.45
-41%
0.43
-34%
0.33
-3%
0.25
22%
0.36
-13%
Contrast
1343
893
-34%
1113
-17%
1573
17%
1319
-2%
878
-35%
Colorchecker DeltaE2000 *
1.08
3.6
-233%
3.09
-186%
1.4
-30%
2.37
-119%
5.9
-446%
Colorchecker DeltaE2000 max. *
3.96
7.5
-89%
5.94
-50%
2.8
29%
4.08
-3%
12.9
-226%
Colorchecker DeltaE2000 calibrated *
1.21
2.06
-70%
1.3
-7%
Greyscale DeltaE2000 *
1.3
4.3
-231%
2.4
-85%
2.2
-69%
2.8
-115%
8.6
-562%
Gamma
2.23 99%
2.1 105%
2.063 107%
2.22 99%
2.145 103%
2.1 105%
CCT
6452 101%
6572 99%
6883 94%
6908 94%
6441 101%
6854 95%
Color Space (Percent of AdobeRGB 1998)
61.4
62.3
1%
69.47
13%
77.3
26%
67
9%
60.7
-1%
Color Space (Percent of sRGB)
96.3
95.7
-1%
98.36
2%
99.99
4%
98
2%
94.5
-2%
Total Average (Program / Settings)
-42% / -54%
-41% / -38%
76% / 36%
-10% / -21%
-50% / -100%

* ... smaller is better

Color space covers nearly the entirety of sRGB and approximately 61 percent of the AdobeRGB standard to be almost identical to the Blade 15 and last generation Blade Stealth. Digital artists should find the panel sufficient in terms of gamut and accuracy. The displays on the Dell XPS 13 or Apple MacBook Pro 13 are capable of even deeper colors to satisfy professionals.

vs. sRGB
vs. sRGB
vs. AdobeRGB
vs. AdobeRGB

Further measurements with a X-Rite colorimeter reveal a very accurate panel out of the box to back up Razer's claim of factory calibration. The average DeltaE values for grayscale and Saturation sit at just 1.3 and 1.11, respectively, to be significantly more accurate than competing systems. Our own attempts to calibrate the panel were fruitless and so an end-user calibration is not needed. Gigabyte offers similar factory calibration benefits for its Aero 15 series as well.

If we are to nitpick, the colors Red and Blue appear to be less accurate than others particularly when at higher saturation levels. Even so, this is only relative as overall color accuracy is excellent.

Grayscale before calibration
Grayscale before calibration
Saturation Sweeps before calibration
Saturation Sweeps before calibration
ColorChecker before calibration
ColorChecker before calibration
Grayscale after calibration
Grayscale after calibration
Saturation Sweeps after calibration
Saturation Sweeps after calibration
ColorChecker after calibration
ColorChecker after calibration

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
34 ms ... rise ↗ and fall ↘ combined↗ 17.6 ms rise
↘ 16.4 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 88 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (24.9 ms).
       Response Time 50% Grey to 80% Grey
57.6 ms ... rise ↗ and fall ↘ combined↗ 29.2 ms rise
↘ 28.4 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 93 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (39.6 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM detected 22730 Hz ≤ 24 % brightness setting

The display backlight flickers at 22730 Hz (Likely utilizing PWM) Flickering detected at a brightness setting of 24 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 22730 Hz is quite high, so most users sensitive to PWM should not notice any flickering.

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 13527 (minimum: 43 - maximum: 2500000) Hz was measured.

Outdoor visibility is above average for an Ultrabook due to the bright display and matte panel to reduce glare. Users who want even better visibility may want to consider the MacBook Pro 13 or Samsung Notebook 9 NP900 as these alternatives have even brighter displays when set to maximum.

Viewing angles are excellent from the IPS panel with no major color or contrast shifting if viewing from extreme angles. Apparent brightness decreases just slightly if not looking directly at the screen.

Outdoors under direct sunlight
Outdoors under direct sunlight
Outdoors under shade
Outdoors under shade
Outdoors under shade
Outdoors under shade
Wide IPS viewing angles
Wide IPS viewing angles

Performance

Soldered system RAM sits close to the CPU and GPU
Soldered system RAM sits close to the CPU and GPU

Like previous Blade Stealth models, the 2018 Blade Stealth makes use of 15 W ULV Intel CPUs as found on most Ultrabooks. The new model ups the ante by introducing a dedicated Nvidia GeForce MX150 GPU much like on the competing MateBook X Pro or HP Envy 13t. Unlike the Huawei or HP, however, the GPU in the Razer is the faster 25 W '1D10' version instead of the 10 W '1D12' version for improved graphics performance. This fact alone should give the new Blade Stealth a significant advantage against the competition where the slower integrated UHD Graphics 620 is often the only option.

VRAM has also been doubled from 2 GB GDDR5 on the MateBook X Pro or HP Envy 13 to 4 GB GDDR5 on the Razer. Nvidia Optimus is supported for automatic graphics switching and to extend battery life.

Processor

CineBench R15
CineBench R15

The Core i7-8565U will become the de facto ULV CPU of choice for Ultrabooks in 2019. Of the few we've tested so far, the processor in the Blade Stealth is about where we expect it to be in relation to Kaby Lake-R. In short, the performance benefits are minuscule at best when compared to the Core i7-8550U that it replaces.

The more important factor is performance sustainability or how much the processor throttles over long periods. By running CineBench R15 Multi-Thread in a loop, we can see that its initial score of 677 points drops to 626 points by the second loop for a performance dip of just 7.5 percent. In comparison, the Core i5 or i7 in the MateBook X Pro can drop by 10 to 15 percent in the same loop test. Throttling is much less severe this time around especially when compared to the last generation Blade Stealth where its i7-8550U CPU was underperforming.

See our dedicated page on the Core i7-8565U for more technical information and benchmark comparisons.

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Razer Blade Stealth i7-8565U GeForce MX150, 8565U, Lite-On CA3-8D256-Q11; CPU Multi 64Bit: Ø627 (623.29-676.66)
Razer Blade Stealth QHD i7-8550U UHD Graphics 620, 8550U, Samsung PM961 NVMe MZVLW512HMJP; CPU Multi 64Bit: Ø514 (508.92-521.44)
Dell Inspiron 14 5000 5482 2-in-1 UHD Graphics 620, 8565U, SK Hynix BC501 NVMe 256 GB; CPU Multi 64Bit: Ø557 (543.67-594.64)
Lenovo Yoga C930-13IKB 81C4 UHD Graphics 620, 8550U, SK hynix PC401 HFS256GD9TNG; CPU Multi 64Bit: Ø588 (570.26-651.27)
Cinebench R15
CPU Single 64Bit
Intel NUC8i7BE
Intel Core i7-8559U
188 Points ∼86% +8%
Intel NUC8i7BE
Intel Core i7-8559U
180 Points ∼83% +3%
Intel Hades Canyon NUC8i7HVK
Intel Core i7-8809G
178 Points ∼82% +2%
Lenovo Legion Y530-15ICH
Intel Core i7-8750H
175 Points ∼80% +1%
Razer Blade Stealth i7-8565U
Intel Core i7-8565U
174 Points ∼80%
Average Intel Core i7-8565U
  (73.1 - 193, n=48)
170 Points ∼78% -2%
Dell G3 15 3579
Intel Core i5-8300H
168 Points ∼77% -3%
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
165 Points ∼76% -5%
Razer Blade Stealth QHD i7-8550U
Intel Core i7-8550U
164 Points ∼75% -6%
Microsoft Surface Laptop i7
Intel Core i7-7660U
154 Points ∼71% -11%
Acer Nitro 5 AN515-42-R6V0
AMD Ryzen 7 2700U
150 Points ∼69% -14%
Microsoft Surface Laptop 2-LQN-00004
Intel Core i5-8250U
141 Points ∼65% -19%
Razer Blade Stealth QHD i7-7500U
Intel Core i7-7500U
139 Points ∼64% -20%
CPU Multi 64Bit
Lenovo Legion Y530-15ICH
Intel Core i7-8750H
1192 Points ∼27% +83%
Intel Hades Canyon NUC8i7HVK
Intel Core i7-8809G
864 Points ∼20% +33%
Dell G3 15 3579
Intel Core i5-8300H
768 Points ∼18% +18%
Intel NUC8i7BE
Intel Core i7-8559U
677 (min: 671.37, max: 798.44) Points ∼15% +4%
Intel NUC8i7BE
Intel Core i7-8559U
672 Points ∼15% +3%
Acer Nitro 5 AN515-42-R6V0
AMD Ryzen 7 2700U
661 Points ∼15% +2%
Razer Blade Stealth i7-8565U
Intel Core i7-8565U
651 Points ∼15%
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
639 Points ∼15% -2%
Microsoft Surface Laptop 2-LQN-00004
Intel Core i5-8250U
590 Points ∼13% -9%
Average Intel Core i7-8565U
  (361 - 815, n=49)
586 Points ∼13% -10%
Razer Blade Stealth QHD i7-8550U
Intel Core i7-8550U
521 Points ∼12% -20%
Microsoft Surface Laptop i7
Intel Core i7-7660U
397 (min: 337, max: 397) Points ∼9% -39%
Razer Blade Stealth QHD i7-7500U
Intel Core i7-7500U
348 Points ∼8% -47%
Cinebench R15 OpenGL 64Bit
94.02 fps
Cinebench R15 Ref. Match 64Bit
99.6 %
Cinebench R15 CPU Multi 64Bit
651 Points
Cinebench R15 CPU Single 64Bit
174 Points
Help

System Performance

PCMark benchmarks show the new Blade Stealth outperforming the competition by notable margins including the MateBook X Pro. Its full-power GeForce MX150 GPU is no doubt responsible for the consistently higher scores.

PCMark 8 Home Accelerated
PCMark 8 Home Accelerated
PCMark 8 Work Accelerated
PCMark 8 Work Accelerated
PCMark 10 Standard
PCMark 10 Standard
PCMark 10
Digital Content Creation
Razer Blade Stealth i7-8565U
GeForce MX150, 8565U, Lite-On CA3-8D256-Q11
3704 Points ∼29%
Dell XPS 13 9370 i7 UHD
UHD Graphics 620, 8550U, Toshiba XG5 KXG50ZNV512G
2994 Points ∼23% -19%
Apple MacBook Pro 13 2018 Touchbar i5
Iris Plus Graphics 655, 8259U
2975 Points ∼23% -20%
Lenovo Yoga C930-13IKB
UHD Graphics 620, 8250U, SK hynix PC401 HFS256GD9TNG
2795 Points ∼22% -25%
Razer Blade Stealth QHD i7-8550U
UHD Graphics 620, 8550U, Samsung PM961 NVMe MZVLW512HMJP
2689 Points ∼21% -27%
HP Spectre x360 13t-ae000
UHD Graphics 620, 8550U, Liteon CA1-8D256-HP
2548 Points ∼20% -31%
Productivity
Razer Blade Stealth i7-8565U
GeForce MX150, 8565U, Lite-On CA3-8D256-Q11
6575 Points ∼63%
Lenovo Yoga C930-13IKB
UHD Graphics 620, 8250U, SK hynix PC401 HFS256GD9TNG
5715 Points ∼55% -13%
Dell XPS 13 9370 i7 UHD
UHD Graphics 620, 8550U, Toshiba XG5 KXG50ZNV512G
5475 Points ∼53% -17%
HP Spectre x360 13t-ae000
UHD Graphics 620, 8550U, Liteon CA1-8D256-HP
5253 Points ∼50% -20%
Razer Blade Stealth QHD i7-8550U
UHD Graphics 620, 8550U, Samsung PM961 NVMe MZVLW512HMJP
4962 Points ∼48% -25%
Apple MacBook Pro 13 2018 Touchbar i5
Iris Plus Graphics 655, 8259U
4390 Points ∼42% -33%
Essentials
Razer Blade Stealth i7-8565U
GeForce MX150, 8565U, Lite-On CA3-8D256-Q11
8373 Points ∼73%
Lenovo Yoga C930-13IKB
UHD Graphics 620, 8250U, SK hynix PC401 HFS256GD9TNG
8355 Points ∼73% 0%
Dell XPS 13 9370 i7 UHD
UHD Graphics 620, 8550U, Toshiba XG5 KXG50ZNV512G
7410 Points ∼65% -12%
HP Spectre x360 13t-ae000
UHD Graphics 620, 8550U, Liteon CA1-8D256-HP
7376 Points ∼64% -12%
Apple MacBook Pro 13 2018 Touchbar i5
Iris Plus Graphics 655, 8259U
7364 Points ∼64% -12%
Razer Blade Stealth QHD i7-8550U
UHD Graphics 620, 8550U, Samsung PM961 NVMe MZVLW512HMJP
6743 Points ∼59% -19%
Score
Razer Blade Stealth i7-8565U
GeForce MX150, 8565U, Lite-On CA3-8D256-Q11
4219 Points ∼52%
Dell XPS 13 9370 i7 UHD
UHD Graphics 620, 8550U, Toshiba XG5 KXG50ZNV512G
3728 Points ∼46% -12%
HP Spectre x360 13t-ae000
UHD Graphics 620, 8550U, Liteon CA1-8D256-HP
3313 Points ∼41% -21%
Apple MacBook Pro 13 2018 Touchbar i5
Iris Plus Graphics 655, 8259U
3284 Points ∼40% -22%
Razer Blade Stealth QHD i7-8550U
UHD Graphics 620, 8550U, Samsung PM961 NVMe MZVLW512HMJP
3262 Points ∼40% -23%
Razer Blade Stealth QHD i7-8550U
UHD Graphics 620, 8550U, Samsung PM961 NVMe MZVLW512HMJP
3212 Points ∼40% -24%
Lenovo Yoga C930-13IKB
UHD Graphics 620, 8250U, SK hynix PC401 HFS256GD9TNG
2603 Points ∼32% -38%
PCMark 8
Work Score Accelerated v2
Razer Blade Stealth i7-8565U
GeForce MX150, 8565U, Lite-On CA3-8D256-Q11
5065 Points ∼77%
Lenovo Yoga C930-13IKB
UHD Graphics 620, 8250U, SK hynix PC401 HFS256GD9TNG
4854 Points ∼74% -4%
Apple MacBook Pro 13 2018 Touchbar i5
Iris Plus Graphics 655, 8259U
4399 Points ∼67% -13%
Razer Blade Stealth QHD i7-8550U
UHD Graphics 620, 8550U, Samsung PM961 NVMe MZVLW512HMJP
4184 Points ∼63% -17%
HP Spectre x360 13t-ae000
UHD Graphics 620, 8550U, Liteon CA1-8D256-HP
4149 Points ∼63% -18%
Dell XPS 13 9370 i7 UHD
UHD Graphics 620, 8550U, Toshiba XG5 KXG50ZNV512G
4125 Points ∼63% -19%
Home Score Accelerated v2
Razer Blade Stealth i7-8565U
GeForce MX150, 8565U, Lite-On CA3-8D256-Q11
3873 Points ∼64%
Lenovo Yoga C930-13IKB
UHD Graphics 620, 8250U, SK hynix PC401 HFS256GD9TNG
3774 Points ∼62% -3%
Apple MacBook Pro 13 2018 Touchbar i5
Iris Plus Graphics 655, 8259U
3665 Points ∼60% -5%
Dell XPS 13 9370 i7 UHD
UHD Graphics 620, 8550U, Toshiba XG5 KXG50ZNV512G
3371 Points ∼55% -13%
HP Spectre x360 13t-ae000
UHD Graphics 620, 8550U, Liteon CA1-8D256-HP
3306 Points ∼54% -15%
Razer Blade Stealth QHD i7-8550U
UHD Graphics 620, 8550U, Samsung PM961 NVMe MZVLW512HMJP
3268 Points ∼54% -16%
PCMark 8 Home Score Accelerated v2
3873 points
PCMark 8 Work Score Accelerated v2
5065 points
Help

Storage Devices

M.2 SSD sits adjacent to the WLAN module
M.2 SSD sits adjacent to the WLAN module

Internal storage is limited to a single M.2 slot as expected. Interestingly, Razer has equipped its latest Blade Stealth with a Lite-On SSD whereas all our previous Razer laptops came with Samsung SSDs. We're not sure why Razer decided to switch suppliers this time, but the 256 GB Samsung PM981 on the Blade 15 Base Model is able to outperform the Lite-On drive on our Blade Stealth on nearly all benchmark tests. Most users will likely not notice the difference during use and performance is still comparable to other Ultrabooks.

See our table of SSDs and HDDs for more benchmark comparisons.

AS SSD
AS SSD
CDM 5.5
CDM 5.5
Razer Blade Stealth i7-8565U
Lite-On CA3-8D256-Q11
Dell XPS 13 9370 i7 UHD
Toshiba XG5 KXG50ZNV512G
Apple MacBook Pro 13 2018 Touchbar i5
 
HP Spectre x360 13t-ae000
Liteon CA1-8D256-HP
Lenovo Yoga C930-13IKB
SK hynix PC401 HFS256GD9TNG
Razer Blade Stealth QHD i7-7500U
Samsung PM951 NVMe MZVLV256
AS SSD
5%
-7%
-4%
-18%
-5%
Copy Game MB/s
1029.3
503.34
-51%
838.95
-18%
340.01
-67%
252.3
-75%
Copy Program MB/s
485.8
570.18
17%
300.87
-38%
209.69
-57%
132.3
-73%
Copy ISO MB/s
1595.45
584.6
-63%
1492.46
-6%
539.41
-66%
687.4
-57%
Score Total
1495
1911
28%
1998
34%
1373
-8%
1967
32%
Score Write
487
596
22%
590
21%
427
-12%
412
-15%
Score Read
679
926
36%
968
43%
657
-3%
1059
56%
Access Time Write *
0.063
0.055
13%
0.13
-106%
0.056
11%
0.03
52%
Access Time Read *
0.069
0.059
14%
0.121
-75%
0.069
-0%
0.06
13%
4K-64 Write
281.49
444.78
58%
162
-42%
404.1
44%
266.32
-5%
256.9
-9%
4K-64 Read
477.27
678.32
42%
957
101%
724.86
52%
434.3
-9%
891.1
87%
4K Write
103.4
107.45
4%
20
-81%
91.36
-12%
94.98
-8%
127.2
23%
4K Read
40.03
29.36
-27%
9.7
-76%
29.84
-25%
38.04
-5%
35.2
-12%
Seq Write
1017.09
435.82
-57%
1694
67%
945.31
-7%
661.05
-35%
283.6
-72%
Seq Read
1616.93
2204.54
36%
1442
-11%
2133.49
32%
1849.93
14%
1331.9
-18%

* ... smaller is better

Lite-On CA3-8D256-Q11
CDM 5/6 Read Seq Q32T1: 3015 MB/s
CDM 5/6 Write Seq Q32T1: 1086 MB/s
CDM 5/6 Read 4K Q32T1: 449.3 MB/s
CDM 5/6 Write 4K Q32T1: 392.1 MB/s
CDM 5 Read Seq: 2459 MB/s
CDM 5 Write Seq: 1085 MB/s
CDM 5/6 Read 4K: 59.23 MB/s
CDM 5/6 Write 4K: 153.8 MB/s

GPU Performance

Razer is proud to advertise its "full-power" 25 W GeForce MX150 and we can comfortably say that its performance benefits are tangible. Its GPU is about 15 percent higher than the average MX150 in our database taken from over 40 other laptops. When compared to the slower 10 W GeForce MX150 in the MateBook X Pro, the Blade Stealth GPU is about 35 percent more powerful. In fact, the Razer laptop currently has the highest 3DMark 11 GPU score in our database out of all other laptops equipped with the same MX150 GPU. Users can expect a performance level just 15 percent behind the old Maxwell GTX 960M for significantly improved performance-per-Watt.

As impressive as its GPU may be, it is still easily outclassed by even an entry-level Pascal gaming laptop. The cheap Dell G3 15 with GTX 1050 graphics is about 60 percent faster for vastly superior gaming potential. Upgrading to the Blade 15 with GTX 1060 Max-Q graphics will bring a performance boost of about 200 percent.

See our dedicated page on the GeForce MX150 for more technical details and benchmark comparisons.

3DMark 11
3DMark 11
Cloud Gate
Cloud Gate
Fire Strike
Fire Strike
3DMark 11
1280x720 Performance Combined
Intel Hades Canyon NUC8i7HVK
AMD Radeon RX Vega M GH, 8809G
10391 Points ∼46% +136%
Razer Blade 15 Base Model
NVIDIA GeForce GTX 1060 Max-Q, 8750H
9792 Points ∼43% +123%
Dell G3 15 3579
NVIDIA GeForce GTX 1050 (Laptop), 8300H
7598 Points ∼34% +73%
Acer Nitro 5 AN515-42-R6V0
AMD Radeon RX 560X (Laptop), 2700U
5792 Points ∼26% +32%
HP Pavilion 17 FHD V3A33AV
NVIDIA GeForce GTX 960M, 6700HQ
5515 Points ∼24% +26%
Razer Blade Stealth i7-8565U
NVIDIA GeForce MX150, 8565U
4394 Points ∼19%
Average NVIDIA GeForce MX150
  (2820 - 4421, n=46)
3957 Points ∼18% -10%
Huawei Matebook X Pro i5
NVIDIA GeForce MX150, 8250U
3538 Points ∼16% -19%
Dell Latitude 5591
NVIDIA GeForce MX130, 8850H
2934 Points ∼13% -33%
Apple MacBook Pro 13 2018 Touchbar i5
Intel Iris Plus Graphics 655, 8259U
2683 Points ∼12% -39%
Asus VivoBook S410UQ-NH74
NVIDIA GeForce 940MX, 8550U
2395 Points ∼11% -45%
HP EliteBook 745 G5 3UN74EA
AMD Radeon RX Vega 10, 2700U
1854 Points ∼8% -58%
Dell XPS 13 9370 i7 UHD
Intel UHD Graphics 620, 8550U
1755 Points ∼8% -60%
Microsoft Surface Laptop 2-LQN-00004
Intel UHD Graphics 620, 8250U
1741 Points ∼8% -60%
Razer Blade Stealth QHD i7-8550U
Intel UHD Graphics 620, 8550U
1681 Points ∼7% -62%
1280x720 Performance GPU
Razer Blade 15 Base Model
NVIDIA GeForce GTX 1060 Max-Q, 8750H
14351 Points ∼28% +193%
Intel Hades Canyon NUC8i7HVK
AMD Radeon RX Vega M GH, 8809G
14302 Points ∼28% +192%
Acer Nitro 5 AN515-42-R6V0
AMD Radeon RX 560X (Laptop), 2700U
8451 Points ∼17% +72%
Dell G3 15 3579
NVIDIA GeForce GTX 1050 (Laptop), 8300H
7658 Points ∼15% +56%
HP Pavilion 17 FHD V3A33AV
NVIDIA GeForce GTX 960M, 6700HQ
5289 Points ∼10% +8%
Razer Blade Stealth i7-8565U
NVIDIA GeForce MX150, 8565U
4905 Points ∼10%
Average NVIDIA GeForce MX150
  (2796 - 4905, n=47)
4191 Points ∼8% -15%
Huawei Matebook X Pro i5
NVIDIA GeForce MX150, 8250U
3483 Points ∼7% -29%
Apple MacBook Pro 13 2018 Touchbar i5
Intel Iris Plus Graphics 655, 8259U
3044 Points ∼6% -38%
Dell Latitude 5591
NVIDIA GeForce MX130, 8850H
3044 Points ∼6% -38%
HP EliteBook 745 G5 3UN74EA
AMD Radeon RX Vega 10, 2700U
2885 Points ∼6% -41%
Asus VivoBook S410UQ-NH74
NVIDIA GeForce 940MX, 8550U
2613 Points ∼5% -47%
Dell XPS 13 9370 i7 UHD
Intel UHD Graphics 620, 8550U
1915 Points ∼4% -61%
Microsoft Surface Laptop 2-LQN-00004
Intel UHD Graphics 620, 8250U
1852 Points ∼4% -62%
Razer Blade Stealth QHD i7-8550U
Intel UHD Graphics 620, 8550U
1675 Points ∼3% -66%
3DMark
1920x1080 Fire Strike Graphics
Razer Blade 15 Base Model
NVIDIA GeForce GTX 1060 Max-Q, 8750H
11366 Points ∼28% +205%
Intel Hades Canyon NUC8i7HVK
AMD Radeon RX Vega M GH, 8809G
10248 Points ∼25% +175%
Acer Nitro 5 AN515-42-R6V0
AMD Radeon RX 560X (Laptop), 2700U
6262 Points ∼15% +68%
Dell G3 15 3579
NVIDIA GeForce GTX 1050 (Laptop), 8300H
6183 Points ∼15% +66%
HP Pavilion 17 FHD V3A33AV
NVIDIA GeForce GTX 960M, 6700HQ
4361 Points ∼11% +17%
Razer Blade Stealth i7-8565U
NVIDIA GeForce MX150, 8565U
3726 Points ∼9%
Average NVIDIA GeForce MX150
  (2323 - 3739, n=44)
3310 Points ∼8% -11%
Huawei Matebook X Pro i5
NVIDIA GeForce MX150, 8250U
2740 Points ∼7% -26%
Dell Latitude 5591
NVIDIA GeForce MX130, 8850H
2430 Points ∼6% -35%
Apple MacBook Pro 13 2018 Touchbar i5
Intel Iris Plus Graphics 655, 8259U
2070 Points ∼5% -44%
Asus VivoBook S410UQ-NH74
NVIDIA GeForce 940MX, 8550U
2069 Points ∼5% -44%
HP EliteBook 745 G5 3UN74EA
AMD Radeon RX Vega 10, 2700U
1738 Points ∼4% -53%
Dell XPS 13 9370 i7 UHD
Intel UHD Graphics 620, 8550U
1283 Points ∼3% -66%
Microsoft Surface Laptop 2-LQN-00004
Intel UHD Graphics 620, 8250U
1271 Points ∼3% -66%
1280x720 Cloud Gate Standard Graphics
Razer Blade 15 Base Model
NVIDIA GeForce GTX 1060 Max-Q, 8750H
81720 Points ∼42% +276%
Intel Hades Canyon NUC8i7HVK
AMD Radeon RX Vega M GH, 8809G
59162 Points ∼31% +172%
Dell G3 15 3579
NVIDIA GeForce GTX 1050 (Laptop), 8300H
39385 Points ∼20% +81%
Acer Nitro 5 AN515-42-R6V0
AMD Radeon RX 560X (Laptop), 2700U
34407 Points ∼18% +58%
HP Pavilion 17 FHD V3A33AV
NVIDIA GeForce GTX 960M, 6700HQ
31060 Points ∼16% +43%
Razer Blade Stealth i7-8565U
NVIDIA GeForce MX150, 8565U
21755 Points ∼11%
Average NVIDIA GeForce MX150
  (16227 - 22183, n=43)
19512 Points ∼10% -10%
Huawei Matebook X Pro i5
NVIDIA GeForce MX150, 8250U
16553 Points ∼9% -24%
Dell Latitude 5591
NVIDIA GeForce MX130, 8850H
14809 Points ∼8% -32%
Apple MacBook Pro 13 2018 Touchbar i5
Intel Iris Plus Graphics 655, 8259U
14343 Points ∼7% -34%
Asus VivoBook S410UQ-NH74
NVIDIA GeForce 940MX, 8550U
10816 Points ∼6% -50%
HP EliteBook 745 G5 3UN74EA
AMD Radeon RX Vega 10, 2700U
10604 Points ∼5% -51%
Microsoft Surface Laptop 2-LQN-00004
Intel UHD Graphics 620, 8250U
9946 Points ∼5% -54%
Dell XPS 13 9370 i7 UHD
Intel UHD Graphics 620, 8550U
9533 Points ∼5% -56%
Razer Blade Stealth QHD i7-8550U
Intel UHD Graphics 620, 8550U
9349 Points ∼5% -57%
3DMark 11 Performance
5219 points
3DMark Cloud Gate Standard Score
15768 points
3DMark Fire Strike Score
3377 points
3DMark Time Spy Score
1280 points
Help

Gaming Performance

The GeForce MX150 is optimal for casual gamers or less demanding titles like LoL, Starcraft II, Fortnite, or Rocket League. In the case of Fortnite, users can expect smooth 1080p60 when playing on Medium preset settings. This is impossible on laptops with integrated UHD Graphics without the aid of streaming or a pricey eGPU.

Idling on Witcher 3 shows smooth frame rates with no performance dips to suggest no interrupting background activity.

More demanding titles like Witcher 3 or Rise of the Tomb Raider can also run at 1080p albeit with most settings turned to Low and at 30 to 40 FPS. The Blade 15 or Razer Core eGPU would be better options in this regard.

0102030Tooltip
Razer Blade Stealth i7-8565U GeForce MX150, 8565U, Lite-On CA3-8D256-Q11: Ø23.2 (22-24)
low med. high ultra
BioShock Infinite (2013) 191.1 109.8 87.8 34.6 fps
The Witcher 3 (2015) 68.8 38.2 22.6 12.6 fps
Rise of the Tomb Raider (2016) 71.7 44.6 24.5 19.8 fps

Emissions

System Noise

The new cooling solution is now larger than before and in a symmetrical layout similar to the Spectre x360 series. Both fans will idle during very low loads like word processing for a near silent experience. We're unable to say that the machine is completely silent since our test unit exhibits some light-moderate electronic noise.

When under higher loads, the Blade Stealth becomes louder more quickly than its competitors. Fans begin revving up sooner before stabilizing in the low 40 dB(A) range. Fan noise can actually be as loud as 45.6 dB(A), but this temporary maximum only occurs during extreme stress like Prime95 and/or FurMark load. In other words, fan noise is more dynamic and thus more noticeable when compared to a traditional Ultrabook especially if running more demanding loads. We suspect that the entry-level configuration with no discrete GeForce graphics would be quieter than what we've recorded below on our higher-end SKU.

Twin ~45 mm system fans and triple heat pipes
Twin ~45 mm system fans and triple heat pipes
Cooling solution has been completely revamped from the previous generation
Cooling solution has been completely revamped from the previous generation
Razer Blade Stealth i7-8565U
GeForce MX150, 8565U, Lite-On CA3-8D256-Q11
Huawei Matebook X Pro i5
GeForce MX150, 8250U, Samsung PM961 MZVLW256HEHP
Razer Blade Stealth QHD i7-8550U
UHD Graphics 620, 8550U, Samsung PM961 NVMe MZVLW512HMJP
Dell XPS 13 9370 i7 UHD
UHD Graphics 620, 8550U, Toshiba XG5 KXG50ZNV512G
HP Spectre x360 13t-ae000
UHD Graphics 620, 8550U, Liteon CA1-8D256-HP
Apple MacBook Pro 13 2018 Touchbar i5
Iris Plus Graphics 655, 8259U
Noise
1%
1%
6%
10%
2%
off / environment *
28.4
27.9
2%
30.5
-7%
28
1%
28.2
1%
29.6
-4%
Idle Minimum *
28.5
27.9
2%
30.7
-8%
28
2%
28.2
1%
29.6
-4%
Idle Average *
29
27.9
4%
30.7
-6%
28
3%
28.2
3%
29.6
-2%
Idle Maximum *
29.1
27.9
4%
32.11
-10%
28
4%
28.2
3%
29.6
-2%
Load Average *
42.8
36.2
15%
32.9
23%
32.5
24%
30.7
28%
36.7
14%
Witcher 3 ultra *
41.4
45
-9%
32.5
21%
Load Maximum *
41.6
45.2
-9%
36.4
12%
42.2
-1%
32.9
21%
46.7
-12%

* ... smaller is better

Noise Level

Idle
28.5 / 29 / 29.1 dB(A)
Load
42.8 / 41.6 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm distance)   environment noise: 28.4 dB(A)

Temperature

Dual rear exhaust
Dual rear exhaust

Surface temperatures when idling are generally higher than competing laptops like the XPS 13 likely due to its more powerful internal components. We are able to measure hot spots of almost 29 C and 33 C on the keyboard center and bottom surface, respectively, compared to just 25 C to 26 C on the XPS 13. If idling on desktop, the hot spot on the bottom of the notebook is directly atop the M.2 SSD as shown by our thermal images below. It doesn't take much to warm up the system.

When under demanding loads like gaming or higher, hot spots can reach up to the 40 to 45 C range. The palm rests will be in the low 30 C range while the WASD keys can be 35 C or warmer. We wouldn't call it uncomfortably warm, but it's something to improve upon on the next Blade iteration especially for the target gaming audience.

System idle (top)
System idle (top)
System idle (bottom)
System idle (bottom)
Witcher 3 stress (top)
Witcher 3 stress (top)
Witcher 3 stress (bottom)
Witcher 3 stress (bottom)
Prime95+FurMark stress (top)
Prime95+FurMark stress (top)
Prime95+FurMark stress (bottom)
Prime95+FurMark stress (bottom)

We stress the system to identify for any potential throttling or stability issues. When subjected to Prime95 load, the CPU can be observed running at up to 3.6 GHz for the first few seconds before reaching 80 C. Thereafter, clock rates drop to 2.8 GHz in order to maintain a cooler core temperature of 63 C. This behavior supports our CineBench R15 loop test results above where the first loop returned the highest possible score before dropping. If running both Prime95 and FurMark simultaneously, the CPU would begin alternating between 300 MHz and 4.1 GHz while the GPU remains steady. CPU and GPU temperatures remain acceptably cool at around 60 C each.

Running Witcher 3 is more representative of real-world gaming loads. The MX150 GPU remains steady at 1772 MHz (compared to just 1038 MHz on the MateBook X Pro) with core temperatures hovering just below 60 C. Results are about 15 C cooler than the MateBook X Pro under similar loads.

Processor performance may not be entirely consistent. At rare times, the CPU would only operate at just 400 MHz or 1700 MHz even when set to the High Performance power profile. CineBench R15 Multi-Thread scores would be just ~120 points or ~350 points instead of the normal 670 range. While we're unable to reproduce this reliably, we believe it is still worth mentioning should users suddenly experience slower performance seemingly out of the blue.

Running on batteries will impact performance. A 3DMark 11 run on batteries returns Physics and Graphics scores of 5197 and 4340 points, respectively, compared to 9422 and 4905 points when on mains.

System idle
System idle
Prime95 stress
Prime95 stress
Prime95+FurMark stress
Prime95+FurMark stress
Witcher 3 stress
Witcher 3 stress
CPU Clock (GHz) GPU Clock (MHz) Average CPU Temperature (°C) Average GPU Temperature (°C)
System Idle -- -- 49 43
Prime95 Stress 2.8 -- 65 --
FurMark Stress -- 1582 -- 59
Prime95 + FurMark Stress 0.4 - 3.6 1557 58 61
Witcher 3 Stress 4.0 - 4.6 1772 58 59
Max. Load
 37 °C
99 F
47.2 °C
117 F
33.8 °C
93 F
 
 36.2 °C
97 F
42.6 °C
109 F
34.4 °C
94 F
 
 31.2 °C
88 F
28.2 °C
83 F
30.2 °C
86 F
 
Maximum: 47.2 °C = 117 F
Average: 35.6 °C = 96 F
35.8 °C
96 F
42.8 °C
109 F
37.8 °C
100 F
31.2 °C
88 F
42 °C
108 F
34.8 °C
95 F
29.6 °C
85 F
33 °C
91 F
31.6 °C
89 F
Maximum: 42.8 °C = 109 F
Average: 35.4 °C = 96 F
Power Supply (max.)  47 °C = 117 F | Room Temperature 20 °C = 68 F | Fluke 62 Mini IR Thermometer
(±) The average temperature for the upper side under maximal load is 35.6 °C / 96 F, compared to the average of 30.7 °C / 87 F for the devices in the class Subnotebook.
(-) The maximum temperature on the upper side is 47.2 °C / 117 F, compared to the average of 35.8 °C / 96 F, ranging from 22 to 57 °C for the class Subnotebook.
(±) The bottom heats up to a maximum of 42.8 °C / 109 F, compared to the average of 40 °C / 104 F
(+) In idle usage, the average temperature for the upper side is 27.2 °C / 81 F, compared to the device average of 30.7 °C / 87 F.
(±) Playing The Witcher 3, the average temperature for the upper side is 37 °C / 99 F, compared to the device average of 30.7 °C / 87 F.
(+) The palmrests and touchpad are reaching skin temperature as a maximum (35.2 °C / 95.4 F) and are therefore not hot.
(-) The average temperature of the palmrest area of similar devices was 28.6 °C / 83.5 F (-6.6 °C / -11.9 F).

Speakers

The quad speakers are loud considering the small chassis. Maximum volume introduces no static or reverberations around the palm rests since the speakers are positioned further towards the rear. Bass reproduction is above average for its size class as well. Overall sound quality comes close to what the Blade 15 offers as both have similar pink noise curves.

Speaker grilles at the expense of some shorter keyboard keys
Speaker grilles at the expense of some shorter keyboard keys
Pink noise at maximum volume
Pink noise at maximum volume
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2036.635.62535.132.63131.733.44031.532.65031.731.76329.133.68029.635.110027.939.212527.243.316026.551.820025.853.625024.75931524.56240024.564.75002466.163024.169.580023.765100023.466.7125023.265.5160023.267.6200023.265.6250022.863.331502364.740002361.2500023.258.1630022.954.2800022.948.11000022.851.61250022.851.71600022.752.6SPL35.476.3N2.438.2median 23.2median 61.2Delta16.735.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6median 17.84.62.4hearing rangehide median Pink NoiseRazer Blade Stealth i7-8565UApple MacBook 12 (Early 2016) 1.1 GHz
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Razer Blade Stealth i7-8565U audio analysis

(-) | not very loud speakers (69.53 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 10% lower than median
(±) | linearity of bass is average (11.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.2% higher than median
(+) | mids are linear (6.3% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | reduced highs - on average 5.5% lower than median
(±) | linearity of highs is average (8.9% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (18.1% difference to median)
Compared to same class
» 44% of all tested devices in this class were better, 11% similar, 45% worse
» The best had a delta of 8%, average was 20%, worst was 50%
Compared to all devices tested
» 30% of all tested devices were better, 7% similar, 63% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis

(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.3% lower than median
(±) | linearity of bass is average (14.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.4% away from median
(+) | mids are linear (5.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (9.3% difference to median)
Compared to same class
» 1% of all tested devices in this class were better, 1% similar, 97% worse
» The best had a delta of 8%, average was 20%, worst was 50%
Compared to all devices tested
» 1% of all tested devices were better, 1% similar, 98% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Energy Management

Power Consumption

The system draws anywhere between 6 W and 10 W when idling on desktop depending on the brightness setting and power profile to be comparable to other 13.3-inch Ultrabooks. When under higher loads, however, the Razer becomes measurably more demanding as the Nvidia GPU starts to kick in. Power consumption is even higher than the MateBook X Pro with its larger 13.9-inch display and higher native resolution. Even so, the 40 percent higher power draw for a rough 200 percent boost in graphics performance over the XPS 13 9370 is not a bad trade.

We are able to record a maximum consumption of 64 W from the small (~10.8 x 3.5 x 2.7 cm) 65 W AC adapter. This high of a consumption can be reached simply by running 3DMark 06 to indicate that even light gaming loads will be enough to get the system running at full power. The included AC adapter can be used to charge other USB Type-C devices and laptops as well.

It's important to note that the 65 W AC adapter is unable to charge the system when it is gaming or under very high loads. When running Witcher 3, for example, the battery would begin to slowly discharge despite being plugged in. Running the game draws over 64 W to leave almost nothing left to recharge the system. The Thunderbolt 3 standard allows for a power delivery of up to 100 W and so we believe that Razer could have avoided this by including an AC adapter more powerful than 65 W. Most other OEMs prefer to have a 10 to 20 percent Wattage headroom.

While we can't confirm at the moment, the entry-level Blade Stealth with no GeForce MX150 graphics will not likely face the above charging issue. Razer ships the same 65 W AC adapter across all SKUs.

Constant power consumption when running 3DMark 06. The laptop is already drawing the maximum that its AC adapter allows
Constant power consumption when running 3DMark 06. The laptop is already drawing the maximum that its AC adapter allows
Power consumption when running Witcher 3. Games already draw the full capacity of the AC adapter
Power consumption when running Witcher 3. Games already draw the full capacity of the AC adapter
Prime95+FurMark initiated at 20s mark. Consumption remains steady throughout
Prime95+FurMark initiated at 20s mark. Consumption remains steady throughout
Prime95 initiated at 20s mark. Consumption spikes before falling slightly after a few seconds. The behavior mimics our clock rate stress test observations
Prime95 initiated at 20s mark. Consumption spikes before falling slightly after a few seconds. The behavior mimics our clock rate stress test observations
Power Consumption
Off / Standbydarklight 0.47 / 0.6 Watt
Idledarkmidlight 6.7 / 8.6 / 9.4 Watt
Load midlight 64.1 / 64.1 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Razer Blade Stealth i7-8565U
8565U, GeForce MX150, Lite-On CA3-8D256-Q11, IPS, 1920x1080, 13.3
Dell XPS 13 9370 i7 UHD
8550U, UHD Graphics 620, Toshiba XG5 KXG50ZNV512G, IPS, 3840x2160, 13.3
Apple MacBook Pro 13 2018 Touchbar i5
8259U, Iris Plus Graphics 655, , IPS, 2560x1600, 13.3
HP Spectre x360 13t-ae000
8550U, UHD Graphics 620, Liteon CA1-8D256-HP, IPS, 3840x2160, 13.3
Razer Blade Stealth QHD i7-8550U
8550U, UHD Graphics 620, Samsung PM961 NVMe MZVLW512HMJP, , 3200x1800, 13.3
Huawei MateBook X Pro, i7
8550U, GeForce MX150, Toshiba XG5 KXG50ZNV512G, LTPS, 3000x2000, 13.9
Power Consumption
17%
10%
15%
31%
20%
Idle Minimum *
6.7
5
25%
2.3
66%
5.9
12%
5.6
16%
4.7
30%
Idle Average *
8.6
8.3
3%
8.7
-1%
9.8
-14%
7.5
13%
8.7
-1%
Idle Maximum *
9.4
8.8
6%
12.2
-30%
10.6
-13%
8.4
11%
9.8
-4%
Load Average *
64.1
46.4
28%
53.3
17%
36.6
43%
33.7
47%
39.4
39%
Load Maximum *
64.1
48.6
24%
64
-0%
34.3
46%
34.6
46%
40.4
37%
Witcher 3 ultra *
63.7
31
51%

* ... smaller is better

Battery Life

Runtimes are impressive on the new model despite its battery capacity being nearly the same as the last generation model. We are able to record a real-world WLAN runtime of 9.5 hours to be comparable to the MacBook Pro 13 and Yoga C930 when subjected to similar loads. The 4K UHD configuration will very likely have shorter runtimes than what we've recorded below.

Charging from empty to full capacity takes 1.5 to 2 hours. If gaming, however, expect the battery to slowly discharge as explained in the section above. Additionally, the USB Type-C charging cable would sometimes be loose and not change our laptop at all even though it is physically connected to the port. This would happen on both the left and right USB ports.

Battery Runtime
Idle (without WLAN, min brightness)
20h 30min
NBC WiFi Websurfing Battery Test 1.3
9h 31min
Load (maximum brightness)
2h 11min
Razer Blade Stealth i7-8565U
8565U, GeForce MX150, 53.1 Wh
Dell XPS 13 9370 i7 UHD
8550U, UHD Graphics 620, 52 Wh
Apple MacBook Pro 13 2018 Touchbar i5
8259U, Iris Plus Graphics 655, 58 Wh
HP Spectre x360 13t-ae000
8550U, UHD Graphics 620, 60 Wh
Lenovo Yoga C930-13IKB
8250U, UHD Graphics 620, 60 Wh
Razer Blade Stealth QHD i7-8550U
8550U, UHD Graphics 620, 53.6 Wh
Battery Runtime
-23%
2%
-17%
2%
-37%
Reader / Idle
1230
819
-33%
1432
16%
WiFi v1.3
571
465
-19%
581
2%
424
-26%
550
-4%
358
-37%
Load
131
109
-17%
121
-8%
124
-5%
Witcher 3 ultra
94
115

Verdict

Pros

+ Impressive GPU performance especially for an Ultrabook
+ full-power 25 W GeForce MX150 w/ 4 GB GDDR5 VRAM
+ very color accurate out of the box; full sRGB coverage
+ sleek and sharp all-matte unibody design
+ narrow bezels; very small footprint
+ quiet under low processing loads
+ bright display and high contrast
+ optimal webcam placement
+ Thunderbolt 3 (40 Gbps)
+ very small AC adapter
+ full-size Arrow keys
+ long battery life
+ large trackpad

Cons

- no 144 Hz display options, per-key RGB lighting, SD reader, Kensington Lock, or RJ-45
- battery slowly drains when gaming even with AC adapter connected
- Razer Central customization features require logging in
- slow display response times; more noticeable ghosting
- warmer surface temperatures than most Ultrabooks
- Enter and Backspace keys are smaller than usual
- limited performance when on battery power
- PWM on low brightness levels
- key travel could be deeper
- clickpad could be firmer
- soldered RAM
In review: Razer Blade Stealth RZ09-0281. Test model provided by Razer
In review: Razer Blade Stealth RZ09-0281. Test model provided by Razer

The latest Blade Stealth offers the biggest performance boost for the series yet. Its new Whiskey Lake-U CPU is much less susceptible to throttling and its discrete GPU option is close to the gaming performance of the 2015 Blade Pro. The notebook is proof that Ultrabooks can offer reasonable graphics performance without sacrificing key subnotebook characteristics like long battery life, an ultra-thin design, a color-accurate display, and quiet fans for non-gaming applications. It works as an ideal candidate for classroom use and that all-important match of Fortnite, Overwatch, Rocket League, or League of Legends in between. Competing Ultrabooks with the same GeForce MX150 GPU, like the HP Envy 13t or Huawei MateBook X Pro, are 25 to 30 percent slower when gaming.

Core drawbacks involve aspects of the keyboard and display. Per-key RGB backlight and HDMI on the last generation Blade Stealth have been dropped. RAM remains non-upgradeable and keyboard feedback could have been deeper. The shortened Enter and Backspace keys in particular may take some getting used to. Meanwhile, black-white and gray-gray response times are average at best for more noticeable ghosting.

We also experienced a small handful of technical issues that we hope are specific to our test unit. The loose charging cable, light-moderate electronic noise, discharging battery when gaming on AC power, and some odd processor clock rate behaviors are thorns on an otherwise powerful 13.3-inch gaming Ultrabook.

Performance-per-Watt is insane for its size class. More powerful than a MacBook Pro 13 without being any larger or heavier, the new Blade Stealth is better than ever at balancing high performance with high portability.

Razer Blade Stealth i7-8565U - 10/03/2019 v7
Allen Ngo

Chassis
87 / 98 → 88%
Keyboard
71%
Pointing Device
88%
Connectivity
56 / 75 → 75%
Weight
71 / 20-75 → 93%
Battery
88%
Display
93%
Games Performance
65 / 78 → 83%
Application Performance
88 / 85 → 100%
Temperature
87%
Noise
89%
Audio
70 / 91 → 77%
Camera
45 / 85 → 53%
Average
77%
86%
Subnotebook - Weighted Average

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> Notebook / Laptop Reviews and News > Reviews > Razer Blade Stealth (i7-8565U, GeForce MX150) Laptop Review
Allen Ngo, 2018-12-16 (Update: 2019-02-23)
Allen Ngo
Allen Ngo - US Editor in Chief
After graduating with a B.S. in environmental hydrodynamics from the University of California, I studied reactor physics to become licensed by the U.S. NRC to operate nuclear reactors. There's a striking level of appreciation you gain for everyday consumer electronics after working with modern nuclear reactivity systems astonishingly powered by computers from the 80s. When I'm not managing day-to-day activities and US review articles on Notebookcheck, you can catch me following the eSports scene and the latest gaming news.