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Asus ROG Zephyrus G15 laptop review: Eye-catcher

The great white shark. The Zephyrus G15 might look like a stylish all-rounder laptop at first glance. However, there's powerful high-end hardware from AMD and Nvidia under the hood. We have tested the 15-inch gaming device extensively.
Florian Glaser, 👁 Florian Glaser (translated by Stephanie Chamberlain), 🇩🇪 🇳🇱 ...

If you decide to buy the top model of the new ROG Zephyrus G15, you will get an extremely powerful overall package. In this way, the GA503Q model that we tested can boast a very powerful Ryzen 9 5900HS CPU and a GeForce RTX 3080 laptop GPU that is only specified with a TDP of 100 watts (including Dynamic Boost). Furthermore, a 1 TB NVMe-based SSD and 32 GB of DDR4 RAM (dual-channel) were installed in our test model, 16 GB of which are soldered to the motherboard. Meanwhile, a matte WQHD display with FreeSync and 165 Hz takes care of image reproduction. Note: According to our specs document, a 144 Hz Full HD display is available as a secondary panel option, but we wouldn't recommend it due to the low color-space coverage (45% NTSC).

Asus ROG Zephyrus G15 GA503Q (ROG Zephyrus G15 Series)
Processor
AMD Ryzen 9 5900HS 8 x 3.3 - 4.6 GHz, Cezanne H (Zen 3)
Graphics adapter
NVIDIA GeForce RTX 3080 Laptop GPU - 8192 MB, Core: 1245 MHz, Memory: 1500 MHz, 100 W TDP, GDDR6, ForceWare 461.23, Optimus
Memory
32768 MB 
, 16 GB on board 16 GB SO-DIMM DDR4-3200, max. 48 GB, all slots full
Display
15.60 inch 16:9, 2560 x 1440 pixel 188 PPI, CMN N156KME-GNA (CMN152A), IPS level, WQHD, glossy: no, 165 Hz
Mainboard
AMD Promontory/Bixby FCH
Storage
SK Hynix HFM001TD3JX013N, 1024 GB 
, NVMe SSD M.2 type 2280 (1 slot empty)
Soundcard
Realtek ALC289 @ AMD K17.6 - Audio Processor - High Definition Audio Controller
Connections
4 USB 3.1 Gen2, USB-C Power Delivery (PD), 1 HDMI, 1 Kensington Lock, Audio Connections: 1 combined port (mic/headset), Card Reader: microSD
Networking
Realtek PCIe GBE Family Controller (10/100/1000/2500/5000MBit/s), Intel Wi-Fi 6 AX200 (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/ax = Wi-Fi 6), Bluetooth 5
Size
height x width x depth (in mm): 20 x 355 x 243 ( = 0.79 x 13.98 x 9.57 in)
Battery
90 Wh Lithium-Ion
Operating System
Microsoft Windows 10 Pro 64 Bit
Camera
Webcam: HD
Additional features
Speakers: 6 speakers, Keyboard: chiclet, Keyboard Light: yes, 200-watt power adapter, Armoury Crate, 24 Months Warranty
Weight
1.99 kg ( = 70.2 oz / 4.39 pounds), Power Supply: 490 g ( = 17.28 oz / 1.08 pounds)
Price
2,799 EUR
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

The ROG Zephyrus G15's competitors include other slim 15-inch gaming models like the MSI GS66 10SGS, the Razer Blade 15 2020, the Acer Predator Triton 500 PT515, and the Lenovo Legion 7 15IMH. These laptops appear in the tables as comparison devices.

Possible contenders in comparison

Rating
Date
Model
Weight
Height
Size
Resolution
Best Price
84 %
02/2021
Asus ROG Zephyrus G15 GA503Q
R9 5900HS, GeForce RTX 3080 Laptop GPU
2 kg20 mm15.60"2560x1440
84 %
05/2020
MSI GS66 10SGS
i7-10750H, GeForce RTX 2080 Super Max-Q
2.2 kg20 mm15.60"1920x1080
86 %
08/2020
Razer Blade 15 RTX 2080 Super Max-Q
i7-10875H, GeForce RTX 2080 Super Max-Q
2.2 kg17.8 mm15.60"1920x1080
04/2020
Acer Predator Triton 500 PT515-52-70N3
i7-10750H, GeForce RTX 2080 Super Max-Q
2.1 kg18 mm15.60"1920x1080
86 %
12/2020
Lenovo Legion 7 15IMH05-81YT001VGE
i9-10980HK, GeForce RTX 2080 Super Max-Q
2.4 kg19.9 mm15.60"1920x1080

Case

The Zephyrus G15 is available in gray or white. The latter edition is definitely an eye-catcher. On the one hand, white is hardly ever used in the laptop segment, and on the other hand, various detail accents like small dots or holes on the lid provide for a different look. Visually, the device looks very high-end, especially since the cover and keyboard area are made of a magnesium-aluminum mix (the surfaces tend to creak when twisted, though).

Stability is okay for such a slim case, as long as you don't make too many demands. The build quality is at a high level. All elements of the test device merge smoothly with each other. The hinge construction is a bit unusual for a gaming laptop. The hinges were designed in such a way that the rear area of the base unit is raised by several millimeters when the lid is opened (a maximum angle of 180°, a one-handed opening is possible), which simultaneously favors ventilation (however, the display tips backwards rather quickly when the surface is shaken).

ROG Zephyrus G15
ROG Zephyrus G15
ROG Zephyrus G15
ROG Zephyrus G15
ROG Zephyrus G15
ROG Zephyrus G15

The G15 also impresses with its low weight. Just under 2 kg is the lowest value in the test field and can be transported quite comfortably. Things are similar in terms of dimensions. The combination of a slim-bezel design and 2.0 cm of height guarantee a slim appearance.

Size comparison

359.34 mm / 14.1 inch 259.04 mm / 10.2 inch 19.9 mm / 0.783 inch 2.4 kg5.25 lbs358 mm / 14.1 inch 248 mm / 9.76 inch 20 mm / 0.787 inch 2.2 kg4.78 lbs359 mm / 14.1 inch 255 mm / 10 inch 18 mm / 0.709 inch 2.1 kg4.63 lbs355 mm / 14 inch 243 mm / 9.57 inch 20 mm / 0.787 inch 2 kg4.39 lbs355 mm / 14 inch 235 mm / 9.25 inch 17.8 mm / 0.701 inch 2.2 kg4.85 lbs

Connectivity

Ports

The connectivity is not bad for such a compact gaming laptop. In this way, the 15-incher accommodates an RJ45 port, an audio jack, an HDMI 2.0 output, a Kensington lock slot, and a card reader that can only accept microSD models, though, which is a bit of a pity. Speaking of a pity: Due to the use of AMD, the G15 has to do without Thunderbolt. As for the USB ports, Asus has opted for two Type-A ports and two Type-C ports (3.2 Gen 2 each) with 100 watts of Power Delivery and DisplayPort support.

While right-handed users should be satisfied with the distribution of the ports, lefties will probably complain because of the layout, since the ports on the left side have been pushed too much to the front. Attached cables can significantly restrict the range of motion of an external mouse.

Left side: Power supply, HDMI 2.0, RJ45 LAN, USB-A 3.2 Gen 2, 2x USB-C 3.2 Gen 2, audio
Left side: Power supply, HDMI 2.0, RJ45 LAN, USB-A 3.2 Gen 2, 2x USB-C 3.2 Gen 2, audio
Right side: USB-A 3.2 Gen 2, microSD, Kensington lock slot
Right side: USB-A 3.2 Gen 2, microSD, Kensington lock slot

Communication

The wireless module from Intel (Wi-Fi 6 AX200) supports WLAN 802.11a/b/g/n/ac/ax and Bluetooth 5.1. The speed in our test (1 meter distance to the reference router, the Netgear Nighthawk AX12) was very good.

Networking
iperf3 Client (receive) TCP 1 m 4M x10
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Wi-Fi 6 AX201
1422 (1349min - 1450max) MBit/s ∼100% +1%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Wi-Fi 6 AX201
1419 (1355min - 1443max) MBit/s ∼100% +1%
Asus ROG Zephyrus G15 GA503Q
Intel Wi-Fi 6 AX200
1410 MBit/s ∼99%
Acer Predator Triton 500 PT515-52-70N3
Killer Wi-Fi 6 AX1650i 160MHz Wireless Network Adapter (201NGW)
1390 MBit/s ∼98% -1%
MSI GS66 10SGS
Intel Wi-Fi 6 AX201
1349 (804min - 1497max) MBit/s ∼95% -4%
Average Intel Wi-Fi 6 AX200
  (523 - 1640, n=83)
1155 MBit/s ∼81% -18%
Average of class Gaming
  (141 - 1670, n=378)
777 MBit/s ∼55% -45%
iperf3 Client (transmit) TCP 1 m 4M x10
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Wi-Fi 6 AX201
1444 (777min - 1768max) MBit/s ∼100% +6%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Wi-Fi 6 AX201
1386 (1331min - 1568max) MBit/s ∼96% +2%
Asus ROG Zephyrus G15 GA503Q
Intel Wi-Fi 6 AX200
1360 MBit/s ∼94%
Acer Predator Triton 500 PT515-52-70N3
Killer Wi-Fi 6 AX1650i 160MHz Wireless Network Adapter (201NGW)
1340 MBit/s ∼93% -1%
MSI GS66 10SGS
Intel Wi-Fi 6 AX201
1243 (1000min - 1395max) MBit/s ∼86% -9%
Average Intel Wi-Fi 6 AX200
  (447 - 1645, n=82)
1050 MBit/s ∼73% -23%
Average of class Gaming
  (144 - 1645, n=378)
714 MBit/s ∼49% -47%

Accessories

Asus provides the Zephyrus G15 with a 200-watt power adapter weighing just under 0.5 kg and measuring 15 x 7 x 2.5 cm.

Maintenance

Since the 15-incher doesn't have a maintenance hatch, the entire bottom of the case has to be removed to reach the components. The bottom cover is secured with 13 screws (note: three of them are located behind rubber seals). Not only does the cooling system, which consists of two fans and several heat pipes (Liquid Metal), await inside the case, but also a SO-DIMM slot (occupied), two M.2 slots (1x free), the battery, and the wireless module are accessible.

ROG Zephyrus G15
ROG Zephyrus G15
ROG Zephyrus G15
ROG Zephyrus G15
ROG Zephyrus G15
ROG Zephyrus G15

Warranty

Asus provides a 24-month warranty for the device.

Input devices

Keyboard

The keyboard left us with mixed feelings. Starting with the key size, which is only convincing when it comes to the main keys. The arrow keys and the F-row, on the other hand, are quite narrow. Not every user will like the layout, either. In this way, for example, the left Shift and <>| are stuck directly together. A single-line Enter is also unusual for a German model. However, the missing Insert and Print Screen keys bothered us the most in the test.

Asus should also work on the labeling. Depending on the ambient brightness, the keys can hardly be read when the backlight is activated. At least the backlight can be adjusted in several levels or turned off completely if desired. Moreover, we would describe the typing feel as quite modest. The keyboard neither reacts particularly crisp nor particularly mushy to input. Practical: Sound can be conveniently controlled using special keys.

White backlight
White backlight

Touchpad

Asus deserves praise for the generously sized touchpad. 13 x 8.5 cm is a rarity in the 15-inch segment; it allows running long distances on the display without having to reset your finger. Thanks to the huge touchpad, the palm rest is also generously sized, which benefits ergonomics. Beyond that, the touchpad impresses with a smooth and very gliding-friendly surface. There's nothing to complain about multitouch support either (zooming and scrolling using two-finger gestures). Only the loud and somewhat rattly click noise is a drawback.

Display

WQHD displays currently represent the perfect compromise between image sharpness and resource consumption. Asus uses a 165 Hz model from CMN (N156KME-GNA) for the Zephyrus G15; it's well suited for gamers due to the high frequency and the relatively low response time (under 10 ms gray-to-gray).

316
cd/m²
305
cd/m²
308
cd/m²
321
cd/m²
327
cd/m²
303
cd/m²
311
cd/m²
295
cd/m²
292
cd/m²
Distribution of brightness
CMN N156KME-GNA (CMN152A)
X-Rite i1Pro 2
Maximum: 327 cd/m² Average: 308.7 cd/m² Minimum: 15 cd/m²
Brightness Distribution: 89 %
Center on Battery: 327 cd/m²
Contrast: 991:1 (Black: 0.33 cd/m²)
ΔE Color 4.49 | 0.6-29.43 Ø5.7, calibrated: 2.27
ΔE Greyscale 4.2 | 0.64-98 Ø5.9
99% sRGB (Argyll 3D) 86% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.173
Asus ROG Zephyrus G15 GA503Q
CMN N156KME-GNA (CMN152A), IPS-Level, 2560x1440, 15.60
MSI GS66 10SGS
AU Optronics B156HAN12.0, IPS, 1920x1080, 15.60
Razer Blade 15 RTX 2080 Super Max-Q
AU Optronics B156HAN12.0, IPS, 1920x1080, 15.60
Acer Predator Triton 500 PT515-52-70N3
AUO B156HAN12.0 (AUO7A8C), IPS, 1920x1080, 15.60
Lenovo Legion 7 15IMH05-81YT001VGE
AUO048E, IPS, 1920x1080, 15.60
Response Times
-8%
26%
-29%
19%
Response Time Grey 50% / Grey 80% *
8.8 (4.4, 4.4)
11.2 (6, 5.2)
-27%
6 (3, 3)
32%
14.4 (7.2, 7.2)
-64%
8 (4, 4)
9%
Response Time Black / White *
11.2 (6.8, 4.4)
10 (5.2, 4.8)
11%
9 (5, 4)
20%
10.4 (5.2, 5.2)
7%
8 (4, 4)
29%
PWM Frequency
Screen
24%
18%
6%
30%
Brightness middle
327
339.4
4%
347
6%
320
-2%
470
44%
Brightness
309
331
7%
328
6%
318
3%
468
51%
Brightness Distribution
89
92
3%
89
0%
88
-1%
85
-4%
Black Level *
0.33
0.24
27%
0.285
14%
0.24
27%
0.21
36%
Contrast
991
1414
43%
1218
23%
1333
35%
2238
126%
Colorchecker DeltaE2000 *
4.49
1.58
65%
2.35
48%
4.03
10%
3.28
27%
Colorchecker DeltaE2000 max. *
8.42
3.8
55%
4.15
51%
8.43
-0%
7.31
13%
Colorchecker DeltaE2000 calibrated *
2.27
1.47
35%
1.16
49%
0.98
57%
0.8
65%
Greyscale DeltaE2000 *
4.2
2.3
45%
3.04
28%
5.94
-41%
4.49
-7%
Gamma
2.173 101%
2.24 98%
2.35 94%
2.42 91%
2.4 92%
CCT
7014 93%
6952 93%
6658 98%
6751 96%
7438 87%
Color Space (Percent of AdobeRGB 1998)
86
64.8
-25%
65
-24%
66
-23%
65
-24%
Color Space (Percent of sRGB)
99
99.4
0%
99
0%
99
0%
99
0%
Total Average (Program / Settings)
8% / 19%
22% / 19%
-12% / 1%
25% / 28%

* ... smaller is better

However, professional users who want to do photo or video editing, for example, and who rely on high color-space coverage should also be happy with the WQHD panel. According to our tests, the 15-inch display covers 99% of the sRGB space and 86% of the AdobeRGB space - a very good result. For comparison: The competition manages a maximum of 66% of AdobeRGB.

CalMAN: Grayscales
CalMAN: Grayscales
CalMAN: Color saturation
CalMAN: Color saturation
CalMAN: ColorChecker
CalMAN: ColorChecker
CalMAN: Grayscales (calibrated)
CalMAN: Grayscales (calibrated)
CalMAN: Color saturation (calibrated)
CalMAN: Color saturation (calibrated)
CalMAN: ColorChecker (calibrated)
CalMAN: ColorChecker (calibrated)

The color accuracy, which is decent out of the box, can be brought to a very good level via calibration (see Calman screenshots).

Asus ROG Zephyrus G15 vs. sRGB (99%)
Asus ROG Zephyrus G15 vs. sRGB (99%)
Subpixel grid
Subpixel grid
Asus ROG Zephyrus G15 vs. AdobeRGB (86%)
Asus ROG Zephyrus G15 vs. AdobeRGB (86%)

The rest of the panel's values are less spectacular. With a brightness of just under 310 cd/m² and a contrast of around 1,000:1, the ROG Zephyrus G15 settles in the midfield. The same applies to the black level (0.33 cd/m²). The viewing angles are at the typical IPS level.

Glare
Glare
Viewing angles
Viewing angles

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
11.2 ms ... rise ↗ and fall ↘ combined↗ 6.8 ms rise
↘ 4.4 ms fall
The screen shows good response rates in our tests, but may be too slow for competitive gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 14 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (24.3 ms).
       Response Time 50% Grey to 80% Grey
8.8 ms ... rise ↗ and fall ↘ combined↗ 4.4 ms rise
↘ 4.4 ms fall
The screen shows fast response rates in our tests and should be suited for gaming.
In comparison, all tested devices range from 0.8 (minimum) to 636 (maximum) ms. » 8 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (38.5 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 not detected

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9686 (minimum: 5 - maximum: 142900) Hz was measured.

Test conditions

As usual, Asus puts its powerful Armoury Crate software on the system, which offers dozens of settings and tuning options. Our measurements were conducted using the "Performance" profile.

Armoury Crate
Armoury Crate

Performance

Despite its compact dimensions, the Zephyrus G15 is a true high-end laptop that should have enough power for all common application scenarios in the coming years.

CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
GPU-Z
GPU-Z
HWiNFO
AS SSD Benchmark
CrystalDiskMark

Processor

With the Cezanne generation, AMD further increases the pressure on its main competitor Intel, which is increasingly falling behind in terms of technology.

Single-core rendering
Single-core rendering
Multi-core rendering
Multi-core rendering

The 7 nm Ryzen 9 5900HS in the G15 belongs to the upper class and can boast 8 cores (16 threads in parallel via SMT) and 16 MB of L3 cache. The base clock speed of 3.3 GHz is increased up to 4.6 GHz under load via Turbo. According to Cinebench R15, the 35-watt CPU reaches between 3.0 and 4.5 GHz in single-core scenarios, whereas the clock rate settles at around 4.0 GHz when all cores are loaded.

010521031542052563073584094510501155126013651470157516801785189019952020.12000.61987.871964.151958.381974.141957.711899.521878.91870.211880.941871.871865.061881.641880.941867.761891.161875.471887.331885.191971.511973.551973.551982.551989.061670.361662.721636.191645.621637.21658.441645.621644.61632.051656.251646.71653.031656.251664.931650.911659.541657.341660.581643.521636.191663.821633.051645.621629.931631.99Tooltip
Asus ROG Zephyrus G15 GA503Q AMD Ryzen 9 5900HS: Ø1928 (1865.06-2020.1)
Lenovo Legion 7 15IMH05-81YT001VGE Intel Core i9-10980HK: Ø1649 (1629.93-1670.36)

Compared to Intel's Comet Lake chips, the R9 5900HS does very well. As you can see in the tables below, even the expensive Core i9-10980HK top model can't keep up with the AMD CPU. Correspondingly, the choice of a Cezanne processor is spot on from a price-performance perspective.

Cinebench R15
CPU Single 64Bit
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
211 Points ∼100%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
205 Points ∼97% -3%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
196 Points ∼93% -7%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
190 Points ∼90% -10%
MSI GS66 10SGS
Intel Core i7-10750H
188 Points ∼89% -11%
Average of class Gaming
  (77 - 238, n=656)
164 Points ∼78% -22%
CPU Multi 64Bit
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
2020 (1865.06min - 2020.1max) Points ∼100%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
1670 (1629.93min - 1670.36max) Points ∼83% -17%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
1288 (1201.27min - 1287.87max) Points ∼64% -36%
MSI GS66 10SGS
Intel Core i7-10750H
1273 (1209.12min - 1272.47max) Points ∼63% -37%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
1187 Points ∼59% -41%
Average of class Gaming
  (196 - 2804, n=664)
962 Points ∼48% -52%
Blender 2.79 - BMW27 CPU
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
374.7 Seconds * ∼100% -50%
MSI GS66 10SGS
Intel Core i7-10750H
371 Seconds * ∼99% -49%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
368 Seconds * ∼98% -48%
Average of class Gaming
  (179 - 901, n=121)
368 Seconds * ∼98% -48%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
268 Seconds * ∼72% -8%
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
249 Seconds * ∼66%
7-Zip 18.03
7z b 4
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
59680 MIPS ∼100%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
49192 MIPS ∼82% -18%
Average of class Gaming
  (3034 - 75612, n=122)
38914 MIPS ∼65% -35%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
38249 MIPS ∼64% -36%
MSI GS66 10SGS
Intel Core i7-10750H
35505 MIPS ∼59% -41%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
35130 MIPS ∼59% -41%
7z b 4 -mmt1
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
5669 MIPS ∼100%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
5542 MIPS ∼98% -2%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
5423 MIPS ∼96% -4%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
5015 MIPS ∼88% -12%
Average of class Gaming
  (2480 - 5811, n=122)
5003 MIPS ∼88% -12%
MSI GS66 10SGS
Intel Core i7-10750H
4923 MIPS ∼87% -13%
Cinebench R20
CPU (Single Core)
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
560 Points ∼100%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
498 Points ∼89% -11%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
479 Points ∼86% -14%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
468 Points ∼84% -16%
Average of class Gaming
  (312 - 577, n=169)
461 Points ∼82% -18%
MSI GS66 10SGS
Intel Core i7-10750H
454 Points ∼81% -19%
CPU (Multi Core)
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
4733 Points ∼100%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
3984 Points ∼84% -16%
Average of class Gaming
  (1397 - 6321, n=170)
3150 Points ∼67% -33%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
2932 Points ∼62% -38%
MSI GS66 10SGS
Intel Core i7-10750H
2928 Points ∼62% -38%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
2860 Points ∼60% -40%
Geekbench 5.3
64 Bit Multi-Core Score
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
8405 Points ∼100% +6%
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
7910 Points ∼94%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
6991 Points ∼83% -12%
Average of class Gaming
  (2783 - 11393, n=106)
6794 Points ∼81% -14%
MSI GS66 10SGS
Intel Core i7-10750H
6522 Points ∼78% -18%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
6216 Points ∼74% -21%
64 Bit Single-Core Score
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
1410 Points ∼100%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
1365 Points ∼97% -3%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
1300 Points ∼92% -8%
Average of class Gaming
  (703 - 1487, n=106)
1249 Points ∼89% -11%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
1233 Points ∼87% -13%
MSI GS66 10SGS
Intel Core i7-10750H
1207 Points ∼86% -14%
HWBOT x265 Benchmark v2.2 - 4k Preset
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
13.8 fps ∼100%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
13.6 fps ∼99% -1%
Average of class Gaming
  (1.7 - 19.8, n=122)
10.7 fps ∼78% -22%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
10.3 fps ∼75% -25%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
10.1 fps ∼73% -27%
MSI GS66 10SGS
Intel Core i7-10750H
9.89 fps ∼72% -28%
LibreOffice - 20 Documents To PDF
MSI GS66 10SGS
Intel Core i7-10750H
56.9 s * ∼100% -4%
Average of class Gaming
  (23.9 - 98.2, n=97)
56 s * ∼98% -2%
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
54.9 s * ∼96%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
53.7 s * ∼94% +2%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
52.1 s * ∼92% +5%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
47.94 s * ∼84% +13%
R Benchmark 2.5 - Overall mean
MSI GS66 10SGS
Intel Core i7-10750H
0.631 sec * ∼100% -17%
Acer Predator Triton 500 PT515-52-70N3
Intel Core i7-10750H
0.606 sec * ∼96% -13%
Average of class Gaming
  (0.507 - 1.088, n=102)
0.604 sec * ∼96% -12%
Razer Blade 15 RTX 2080 Super Max-Q
Intel Core i7-10875H
0.579 sec * ∼92% -8%
Lenovo Legion 7 15IMH05-81YT001VGE
Intel Core i9-10980HK
0.571 sec * ∼90% -6%
Asus ROG Zephyrus G15 GA503Q
AMD Ryzen 9 5900HS
0.538 sec * ∼85%

* ... smaller is better

Cinebench R15 CPU Multi 64Bit
2020 Points
Cinebench R15 OpenGL 64Bit
142 fps
Cinebench R15 Ref. Match 64Bit
99.6 %
Cinebench R15 CPU Single 64Bit
211 Points
Help

System performance

System benchmarks also benefit from the fast CPU. With a PCMark 10 score of 6,896 points, the Zephyrus G15 is able to outperform the competition, which - at least on paper - lags between 5% and 26% behind. Subjectively speaking, all comparison devices offer a very high system speed.

PCMark 10 - Score
Asus ROG Zephyrus G15 GA503Q
GeForce RTX 3080 Laptop GPU, R9 5900HS, SK Hynix HFM001TD3JX013N
6896 Points ∼100%
Lenovo Legion 7 15IMH05-81YT001VGE
GeForce RTX 2080 Super Max-Q, i9-10980HK, 2x Samsung PM981a MZVLB1T0HBLR (RAID 0)
6574 Points ∼95% -5%
MSI GS66 10SGS
GeForce RTX 2080 Super Max-Q, i7-10750H, Samsung SSD PM981 MZVLB512HAJQ
6154 Points ∼89% -11%
Acer Predator Triton 500 PT515-52-70N3
GeForce RTX 2080 Super Max-Q, i7-10750H, Samsung SSD PM981a MZVLB512HBJQ
5484 Points ∼80% -20%
Average of class Gaming
  (2603 - 7511, n=334)
5399 Points ∼78% -22%
Razer Blade 15 RTX 2080 Super Max-Q
GeForce RTX 2080 Super Max-Q, i7-10875H, Samsung PM981a MZVLB1T0HBLR
5093 Points ∼74% -26%
PCMark 10 Score
6896 points
Help

DPC latencies

Asus doesn't mess up when it comes to latencies either. The LatencyMon tool shows that the 15-incher is fully suitable for practical use. Some rivals reveal weaknesses here.

Latencies
Latencies
Latencies
DPC Latencies / LatencyMon - interrupt to process latency (max), Web, Youtube, Prime95
Acer Predator Triton 500 PT515-52-70N3
GeForce RTX 2080 Super Max-Q, i7-10750H, Samsung SSD PM981a MZVLB512HBJQ
6243.8 μs * ∼100% -1658%
Lenovo Legion 7 15IMH05-81YT001VGE
GeForce RTX 2080 Super Max-Q, i9-10980HK, 2x Samsung PM981a MZVLB1T0HBLR (RAID 0)
1622.8 μs * ∼26% -357%
MSI GS66 10SGS
GeForce RTX 2080 Super Max-Q, i7-10750H, Samsung SSD PM981 MZVLB512HAJQ
1387.9 μs * ∼22% -291%
Razer Blade 15 RTX 2080 Super Max-Q
GeForce RTX 2080 Super Max-Q, i7-10875H, Samsung PM981a MZVLB1T0HBLR
785 μs * ∼13% -121%
Asus ROG Zephyrus G15 GA503Q
GeForce RTX 3080 Laptop GPU, R9 5900HS, SK Hynix HFM001TD3JX013N
355.1 μs * ∼6%

* ... smaller is better

Storage

Although the storage drive comes from the rather unknown brand SK Hynix, the 1 TB SSD can easily compete with the Samsung models from the competition. The PCIe 4 drive achieves a very high speed for both small and large files. A second M.2 slot is available for upgrades.

Asus ROG Zephyrus G15 GA503Q
SK Hynix HFM001TD3JX013N
MSI GS66 10SGS
Samsung SSD PM981 MZVLB512HAJQ
Razer Blade 15 RTX 2080 Super Max-Q
Samsung PM981a MZVLB1T0HBLR
Acer Predator Triton 500 PT515-52-70N3
Samsung SSD PM981a MZVLB512HBJQ
Lenovo Legion 7 15IMH05-81YT001VGE
2x Samsung PM981a MZVLB1T0HBLR (RAID 0)
CrystalDiskMark 5.2 / 6
-16%
-6%
-5%
-6%
Write 4K
156.4
132.5
-15%
135.7
-13%
131.7
-16%
110.42
-29%
Read 4K
66.69
45.03
-32%
46.98
-30%
47.34
-29%
55.12
-17%
Write Seq
2318
1987
-14%
2180
-6%
2884
24%
Read Seq
2151
1434
-33%
1949
-9%
2303
7%
Write 4K Q32T1
525
467.5
-11%
510.1
-3%
423.9
-19%
466.56
-11%
Read 4K Q32T1
452.1
536
19%
569.3
26%
487.7
8%
516.87
14%
Write Seq Q32T1
3055
2003
-34%
2984
-2%
2822
-8%
3423.6
12%
Read Seq Q32T1
3607
3306
-8%
3238
-10%
3478
-4%
3519.4
-2%
AS SSD
-31%
-6%
-5%
-4%
Score Total
5090
4588
-10%
4843
-5%
4677
-8%
4583
-10%
Score Write
2464
2029
-18%
2215
-10%
2367
-4%
1737
-30%
Score Read
1778
1662
-7%
1725
-3%
1529
-14%
1901
7%
Access Time Write *
0.029
0.1
-245%
0.038
-31%
0.038
-31%
0.037
-28%
Access Time Read *
0.064
0.059
8%
0.051
20%
0.065
-2%
0.051
20%
4K-64 Write
2177.16
1721.47
-21%
1886.93
-13%
2007.16
-8%
1378.48
-37%
4K-64 Read
1429.48
1502.66
5%
1484.47
4%
1205.16
-16%
1549.29
8%
4K Write
126.8
117.25
-8%
95.45
-25%
98.89
-22%
102
-20%
4K Read
53.56
50.96
-5%
45.48
-15%
47.55
-11%
43.01
-20%
Seq Write
1600.23
1901.41
19%
2322.09
45%
2612.8
63%
2561
60%
Seq Read
2949.59
1086.4
-63%
1949.74
-34%
2766.61
-6%
3088
5%
Total Average (Program / Settings)
-24% / -25%
-6% / -6%
-5% / -5%
-5% / -5%

* ... smaller is better

SK Hynix HFM001TD3JX013N
CDM 5/6 Read Seq Q32T1: 3607 MB/s
CDM 5/6 Write Seq Q32T1: 3055 MB/s
CDM 5/6 Read 4K Q32T1: 452.1 MB/s
CDM 5/6 Write 4K Q32T1: 525 MB/s
CDM 5 Read Seq: 2151 MB/s
CDM 5 Write Seq: 2318 MB/s
CDM 5/6 Read 4K: 66.69 MB/s
CDM 5/6 Write 4K: 156.4 MB/s

Continuous load read: DiskSpd Read Loop, Queue Depth 8

0185370555740925111012951480166518502035222024052590277529603145333035153397.723590.323590.953591.323591.323591.373591.793591.953592.373592.373592.633592.793592.793592.843592.993593.623593.743594.253594.313594.463594.463594.523594.673594.943595.093595.33595.513595.513595.723595.723596.133596.263596.343596.553596.553596.973596.973597.393598.443598.653598.653598.923599.063599.273599.93600.113600.183600.533601.513606.39Tooltip
: Ø3592 (3397.72-3606.39)

Graphics card

In order not to overtax the cooling system of the slim 15-inch case, Asus uses the weakest version of the RTX 3080 laptop GPU that has an 80-watt TDP (100 watts including Dynamic Boost).

3DMark Cloud Gate Standard Score
42022 points
3DMark Fire Strike Score
20784 points
3DMark Time Spy Score
9391 points
Help

The low TDP has a correspondingly negative impact on performance. Despite the large number of shaders, which is far from the desktop counterpart's level (6,144 vs. 8,704), the RTX 3080 laptop version can hardly distinguish itself from devices based on the RTX 2080 (Super) Max-Q in the 3D benchmarks. As a result, buyers shouldn't expect a big performance leap.

8 GB of GDDR6 VRAM is also a bit meager in 2021 considering the video memory requirements of many modern games. A minimum of 10 GB would have been appropriate here (at least the 3080 laptop version is also available as a 16 GB model).

3DMark
2560x1440 Port Royal Graphics
Average NVIDIA GeForce RTX 3080 Laptop GPU
  (5914 - 7333, n=6)
6715 Points ∼100% +14%
Asus ROG Zephyrus G15 GA503Q
NVIDIA GeForce RTX 3080 Laptop GPU
5914 Points ∼88%
Acer Predator Triton 500 PT515-52-70N3
NVIDIA GeForce RTX 2080 Super Max-Q
5086 Points ∼76% -14%
Razer Blade 15 RTX 2080 Super Max-Q
NVIDIA GeForce RTX 2080 Super Max-Q
4814 Points ∼72% -19%
MSI GS66 10SGS
NVIDIA GeForce RTX 2080 Super Max-Q
4657 Points ∼69% -21%
Average of class Gaming
  (1097 - 6934, n=129)
4275 Points ∼64% -28%
2560x1440 Time Spy Graphics
Average NVIDIA GeForce RTX 3080 Laptop GPU
  (9439 - 12394, n=8)
10904 Points ∼100% +16%
Asus ROG Zephyrus G15 GA503Q
NVIDIA GeForce RTX 3080 Laptop GPU
9439 Points ∼87%
Lenovo Legion 7 15IMH05-81YT001VGE
NVIDIA GeForce RTX 2080 Super Max-Q
8526 Points ∼78% -10%
Acer Predator Triton 500 PT515-52-70N3
NVIDIA GeForce RTX 2080 Super Max-Q
8379 Points ∼77% -11%
Razer Blade 15 RTX 2080 Super Max-Q
NVIDIA GeForce RTX 2080 Super Max-Q
7766 Points ∼71% -18%
MSI GS66 10SGS
NVIDIA GeForce RTX 2080 Super Max-Q
7618 Points ∼70% -19%
Average of class Gaming
  (368 - 13013, n=290)
6235 Points ∼57% -34%
1920x1080 Fire Strike Graphics
Average NVIDIA GeForce RTX 3080 Laptop GPU
  (20538 - 30966, n=8)
26070 Points ∼100% +14%
Asus ROG Zephyrus G15 GA503Q
NVIDIA GeForce RTX 3080 Laptop GPU
22826 Points ∼88%
Lenovo Legion 7 15IMH05-81YT001VGE
NVIDIA GeForce RTX 2080 Super Max-Q
22630 Points ∼87% -1%
Acer Predator Triton 500 PT515-52-70N3
NVIDIA GeForce RTX 2080 Super Max-Q
22326 Points ∼86% -2%
Razer Blade 15 RTX 2080 Super Max-Q
NVIDIA GeForce RTX 2080 Super Max-Q
21479 Points ∼82% -6%
MSI GS66 10SGS
NVIDIA GeForce RTX 2080 Super Max-Q
20117 Points ∼77% -12%
Average of class Gaming
  (385 - 40636, n=676)
12672 Points ∼49% -44%

We tested how the GPU behaves over a prolonged period of time with the RPG heavyweight The Witcher 3 for about 60 minutes (Full HD/Ultra). On average, the RTX 3080 laptop GPU ran at 1,260 MHz (base clock speed of 780 MHz) and did not suffer from any performance drops

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878786878786878687878687868787868787878686878787878687878786878786878787868787878786878787868787878787878687878686878787868787878787878687878787878787878787868787878786878787878786878787878787868787868786878787868787878687878787878687878788878787878787888787878788878787878788868787888787878787878787878887878787878787888787888688878787878787878887878887878787888787878687878787878887878788877984858484848484848484848484838483848484838484848385838484848484848484848484848485848385848484838483848483848384848384848482838382838283838283838282838283838283828382838382838283828382838383828383838383838483838383838383838383838483838483838483858484848583848484848584858484858584848584858484858485848485848584858485Tooltip
Asus ROG Zephyrus G15 GA503Q GeForce RTX 3080 Laptop GPU, R9 5900HS, SK Hynix HFM001TD3JX013N: Ø88.2 (79-91)

Gaming Performance

As long as you limit yourself to the native resolution, the Zephyrus G15 delivers very good performance in games. 2560x1440 pixels and maximum details is even possible in demanding titles, although it's not always enough to exceed 60 FPS (see comparison table).

The Witcher 3
3840x2160 High Graphics & Postprocessing (Nvidia HairWorks Off)
Asus ROG Zephyrus G15 GA503Q
GeForce RTX 3080 Laptop GPU, R9 5900HS
62.2 (7.22min, 44P0.1, 51.4P1 - 208max) fps ∼100%
Acer Predator Triton 500 PT515-52-70N3
GeForce RTX 2080 Super Max-Q, i7-10750H
58.2 (47min) fps ∼94% -6%
Average of class Gaming
  (9.3 - 89.2, n=78)
46.9 fps ∼75% -25%
1920x1080 Ultra Graphics & Postprocessing (HBAO+)
Asus ROG Zephyrus G15 GA503Q
GeForce RTX 3080 Laptop GPU, R9 5900HS
90.2 fps ∼100%
Lenovo Legion 7 15IMH05-81YT001VGE
GeForce RTX 2080 Super Max-Q, i9-10980HK
88.8 (73min, 83P1 - 93max) fps ∼98% -2%
Razer Blade 15 RTX 2080 Super Max-Q
GeForce RTX 2080 Super Max-Q, i7-10875H
87.7 fps ∼97% -3%
Acer Predator Triton 500 PT515-52-70N3
GeForce RTX 2080 Super Max-Q, i7-10750H
83.4 (67min) fps ∼92% -8%
MSI GS66 10SGS
GeForce RTX 2080 Super Max-Q, i7-10750H
74.3 fps ∼82% -18%
Average of class Gaming
  (12.6 - 115, n=442)
55.5 fps ∼62% -38%
low med. high ultraQHD4K
GTA V (2015) 177 152 90 fps
The Witcher 3 (2015) 155 90.2 62.2 fps
Dota 2 Reborn (2015) 148 140 126 119 fps
X-Plane 11.11 (2018) 103 88 72.4 fps
Shadow of the Tomb Raider (2018) 111 106 79 43 fps
Battlefield V (2018) 131 125 98.3 59.2 fps
Apex Legends (2019) 144 144 120 69.2 fps
Far Cry New Dawn (2019) 101 90 78 50 fps
Metro Exodus (2019) 85 68.7 53.8 35.4 fps
The Division 2 (2019) 105 82 56 31 fps
Anno 1800 (2019) 77.6 44.3 37.9 25.2 fps
Rage 2 (2019) 116 115 75.5 37.8 fps
Control (2019) 82.3 55.7 29 fps
Borderlands 3 (2019) 94.5 76.5 55.7 32.3 fps
GRID 2019 (2019) 113 84.8 69.8 48.7 fps
Need for Speed Heat (2019) 94.3 89.4 67.9 40.7 fps
Star Wars Jedi Fallen Order (2019) 97.8 91.5 79 42.1 fps
Red Dead Redemption 2 (2019) 85.1 57.5 46.9 31.2 fps
Hunt Showdown (2020) 111 71.4 36.8 fps
Doom Eternal (2020) 165 163 123 68 fps
Gears Tactics (2020) 136 107 72.4 39.4 fps
F1 2020 (2020) 162 131 103 60 fps
Death Stranding (2020) 83.6 82.3 73.7 52.1 fps
Horizon Zero Dawn (2020) 93 84 67 41 fps
Crysis Remastered (2020) 79.2 56.9 45.2 29.4 fps
Serious Sam 4 (2020) 93.3 80.2 67.2 fps
Mafia Definitive Edition (2020) 98.7 70.7 37.2 fps
Star Wars Squadrons (2020) 198 189 134 79.4 fps
FIFA 21 (2020) 198 190 156 104 fps
Watch Dogs Legion (2020) 82 65 52 31 fps
Dirt 5 (2020) 85.6 56.4 42.7 39.6 fps
Assassin´s Creed Valhalla (2020) 74 64 52 33 fps
Call of Duty Black Ops Cold War (2020) 89.4 81.7 62.8 36.9 fps
Yakuza Like a Dragon (2020) 112 101 67.1 35.8 fps
Immortals Fenyx Rising (2020) 88 82 64 44 fps
Cyberpunk 2077 (2020) 70 60.2 39.8 19.7 fps

Emissions

Noise emissions

Although the Zephyrus G15 can get very loud in 3D mode with a maximum of 49 to 51 dB, noise development is roughly on par with the competition, which also screams for a headset when gaming. The situation is much quieter in idle mode. On the one hand, the fans sometimes turn off completely (silent operation), and on the other hand, the base noise level is quite decent considering it's only 27 dB.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2038.142.342.437.241.92536.438.437.337.535.43144.945.646.644.248.64031.832.631.629.232.25041.840.635.635.538.46329.83231.426.4298026.425.819.517.229.410029.123.919.117.924.61252829.120.418.529.616027.530.824.925.330.420031.429.726.824.82925033.630.324.921.833.831537.22520.91834.640034.321.819.315.435.750035.122.417.915.736.963037.120.714.112.138.180038.219.712.111.340.1100037.417.811.511.439.7125039.618.811.21141.6160038.416.411.311.340.1200038.814.811.811.341.1250038.614.311.811.640.6315036.813.912.212.239.540003413.412.512.336.6500031.113.312.812.533.2630029.813.112.812.732.7800024.713.513.112.728.61000019.613.813.212.621.31250017.612.812.912.317.21600017.612.312.211.713.7SPL48.530.426.425.450.5N6.31.40.80.77.2median 34median 17.8median 12.9median 12.5median 34.6Delta5.15.23.835.1hearing rangehide median Fan NoiseAsus ROG Zephyrus G15 GA503Q

Noise Level

Idle
26 / 27 / 31 dB(A)
Load
49 / 51 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   Earthworks M23R, Arta (15 cm distance)   environment noise: 25 dB(A)
Asus ROG Zephyrus G15 GA503Q
R9 5900HS, GeForce RTX 3080 Laptop GPU
MSI GS66 10SGS
i7-10750H, GeForce RTX 2080 Super Max-Q
Razer Blade 15 RTX 2080 Super Max-Q
i7-10875H, GeForce RTX 2080 Super Max-Q
Acer Predator Triton 500 PT515-52-70N3
i7-10750H, GeForce RTX 2080 Super Max-Q
Lenovo Legion 7 15IMH05-81YT001VGE
i9-10980HK, GeForce RTX 2080 Super Max-Q
Noise
-5%
-4%
-10%
5%
off / environment *
25
28.5
-14%
30.1
-20%
30
-20%
24.4
2%
Idle Minimum *
26
30
-15%
30.1
-16%
30
-15%
24.4
6%
Idle Average *
27
30
-11%
30.1
-11%
33
-22%
24.4
10%
Idle Maximum *
31
30.9
-0%
30.1
3%
36
-16%
24.4
21%
Load Average *
49
39.5
19%
46.8
4%
50
-2%
49.3
-1%
Witcher 3 ultra *
49
48
2%
48.4
1%
48
2%
54
-10%
Load Maximum *
51
59.4
-16%
46
10%
50
2%
46.6
9%

* ... smaller is better

Temperature

Heat development is a bit worse on the Zephyrus G15 than on its (technically outdated) opponents. In thiss way, we were able to obtain up to 51 °C (~124 °F) on the top and up to 56 °C (~133 °F) on the bottom of the chassis in the stress test with the FurMark and Prime95 tools. The case reaches about 30 °C (~86 °F) in idle usage. Furthermore, the components don't get excessively hot under load. While the GPU reaches just over 70 °C (~158 °F) in 3D applications, the CPU heats up to slightly over 80 °C (~176 °F).

The Witcher 3
The Witcher 3
Stress test
Stress test
Full load top
Full load top
Full load bottom
Full load bottom
Max. Load
 49 °C
120 F
51 °C
124 F
49 °C
120 F
 
 45 °C
113 F
47 °C
117 F
43 °C
109 F
 
 36 °C
97 F
39 °C
102 F
36 °C
97 F
 
Maximum: 51 °C = 124 F
Average: 43.9 °C = 111 F
55 °C
131 F
56 °C
133 F
55 °C
131 F
50 °C
122 F
52 °C
126 F
48 °C
118 F
40 °C
104 F
46 °C
115 F
39 °C
102 F
Maximum: 56 °C = 133 F
Average: 49 °C = 120 F
Power Supply (max.)  44 °C = 111 F | Room Temperature 20 °C = 68 F | Fluke t3000FC (calibrated), Voltcraft IR-900
(-) The average temperature for the upper side under maximal load is 43.9 °C / 111 F, compared to the average of 33.4 °C / 92 F for the devices in the class Gaming.
(-) The maximum temperature on the upper side is 51 °C / 124 F, compared to the average of 39.9 °C / 104 F, ranging from 21.6 to 68.8 °C for the class Gaming.
(-) The bottom heats up to a maximum of 56 °C / 133 F, compared to the average of 42.7 °C / 109 F
(+) In idle usage, the average temperature for the upper side is 28.2 °C / 83 F, compared to the device average of 33.4 °C / 92 F.
(±) Playing The Witcher 3, the average temperature for the upper side is 37.8 °C / 100 F, compared to the device average of 33.4 °C / 92 F.
(±) The palmrests and touchpad can get very hot to the touch with a maximum of 39 °C / 102.2 F.
(-) The average temperature of the palmrest area of similar devices was 28.8 °C / 83.8 F (-10.2 °C / -18.4 F).
Asus ROG Zephyrus G15 GA503Q
R9 5900HS, GeForce RTX 3080 Laptop GPU
MSI GS66 10SGS
i7-10750H, GeForce RTX 2080 Super Max-Q
Razer Blade 15 RTX 2080 Super Max-Q
i7-10875H, GeForce RTX 2080 Super Max-Q
Acer Predator Triton 500 PT515-52-70N3
i7-10750H, GeForce RTX 2080 Super Max-Q
Lenovo Legion 7 15IMH05-81YT001VGE
i9-10980HK, GeForce RTX 2080 Super Max-Q
Heat
5%
3%
9%
21%
Maximum Upper Side *
51
47.8
6%
52
-2%
44
14%
35.2
31%
Maximum Bottom *
56
54.4
3%
53
5%
50
11%
32.5
42%
Idle Upper Side *
29
27.4
6%
29.3
-1%
29
-0%
29.4
-1%
Idle Bottom *
34
32
6%
30.2
11%
31
9%
29.6
13%

* ... smaller is better

Speakers

A big surprise awaits when it comes to the sound system. In contrast to most laptops, which are especially weak in terms of bass, the Zephyrus G15 offers a very balanced and powerful sound - by laptop standards - that outshines the competition. No wonder, since Asus has installed a total of 6 speakers.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2037.247.72537.544.23144.252.74029.234.25035.537.36326.4378017.243.510017.952.912518.55816025.358.820024.859.425021.863.23151863.440015.463.850015.767.563012.168.380011.368.2100011.46912501168160011.367.8200011.369.4250011.667.7315012.263.8400012.362.8500012.559.6630012.756.9800012.760.51000012.656.41250012.352.71600011.751.1SPL25.478.1N0.743.6median 12.5median 63.2Delta35.535.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6median 17.84.62.4hearing rangehide median Pink NoiseAsus ROG Zephyrus G15 GA503QApple MacBook 12 (Early 2016) 1.1 GHz
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Asus ROG Zephyrus G15 GA503Q audio analysis

(±) | speaker loudness is average but good (78 dB)
Bass 100 - 315 Hz
(+) | good bass - only 4% away from median
(+) | bass is linear (6.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.6% away from median
(+) | mids are linear (2.1% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.5% away from median
(+) | highs are linear (5.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (9.2% difference to median)
Compared to same class
» 3% of all tested devices in this class were better, 1% similar, 96% worse
» The best had a delta of 6%, average was 17%, worst was 37%
Compared to all devices tested
» 2% of all tested devices were better, 0% similar, 98% worse
» The best had a delta of 3%, average was 21%, worst was 65%

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
» 2% of all tested devices in this class were better, 1% similar, 97% worse
» The best had a delta of 7%, average was 19%, worst was 50%
Compared to all devices tested
» 2% of all tested devices were better, 0% similar, 98% worse
» The best had a delta of 3%, average was 21%, worst was 65%

Energy management

Energy consumption

The built-in graphics switching solution (Nvidia Optimus) leads to moderate energy consumption in idle usage. 10 to 17 watts could also come from a much weaker multimedia laptop. Under load, our measuring device displayed between 108 and 182 watts, which is also acceptable in view of the performance offered - especially when you consider the competition.

Power Consumption
Off / Standbydarklight 0.4 / 1.8 Watt
Idledarkmidlight 10 / 12 / 17 Watt
Load midlight 108 / 182 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Asus ROG Zephyrus G15 GA503Q
R9 5900HS, GeForce RTX 3080 Laptop GPU
MSI GS66 10SGS
i7-10750H, GeForce RTX 2080 Super Max-Q
Razer Blade 15 RTX 2080 Super Max-Q
i7-10875H, GeForce RTX 2080 Super Max-Q
Acer Predator Triton 500 PT515-52-70N3
i7-10750H, GeForce RTX 2080 Super Max-Q
Lenovo Legion 7 15IMH05-81YT001VGE
i9-10980HK, GeForce RTX 2080 Super Max-Q
Power Consumption
-32%
-7%
-17%
-8%
Idle Minimum *
10
14.9
-49%
10.6
-6%
11
-10%
9
10%
Idle Average *
12
17.5
-46%
13.1
-9%
15
-25%
12.6
-5%
Idle Maximum *
17
29.5
-74%
15.8
7%
25
-47%
17
-0%
Load Average *
108
94.8
12%
131
-21%
95
12%
115
-6%
Witcher 3 ultra *
123
146.1
-19%
146
-19%
140
-14%
159
-29%
Load Maximum *
182
210.9
-16%
169
7%
211
-16%
216
-19%

* ... smaller is better

Battery life

Asus impressively proves that gaming laptops with long battery life are no longer wishful thinking. A maximum of 12 hours of idle usage at minimum brightness is just as remarkable as a good 9.5 hours of Internet surfing over WLAN (brightness reduced to 150 cd/m²). With these rates, the Zephyrus G15 sprints past all its rivals. However, 3D performance also drops massively without a power adapter as our test with The Witcher 3 showed (over 90% less FPS).

Battery Runtime
Idle (without WLAN, min brightness)
12h 08min
NBC WiFi Websurfing Battery Test 1.3
9h 24min
Load (maximum brightness)
1h 30min
Asus ROG Zephyrus G15 GA503Q
R9 5900HS, GeForce RTX 3080 Laptop GPU, 90 Wh
MSI GS66 10SGS
i7-10750H, GeForce RTX 2080 Super Max-Q, 99.99 Wh
Razer Blade 15 RTX 2080 Super Max-Q
i7-10875H, GeForce RTX 2080 Super Max-Q, 80 Wh
Acer Predator Triton 500 PT515-52-70N3
i7-10750H, GeForce RTX 2080 Super Max-Q, 84 Wh
Lenovo Legion 7 15IMH05-81YT001VGE
i9-10980HK, GeForce RTX 2080 Super Max-Q, 80 Wh
Battery Runtime
-13%
-12%
-26%
-35%
Reader / Idle
728
614
-16%
522
-28%
495
-32%
WiFi v1.3
564
413
-27%
366
-35%
378
-33%
204
-64%
Load
90
94
4%
113
26%
78
-13%
85
-6%
H.264
437
92

Pros

+ lightweight and compact case
+ colorful WQHD panel
+ long battery life
+ sleek design
+ good sound

Cons

- RAM partly soldered
- suboptimal keyboard layout
- quite loud in 3D mode
- no webcam

Verdict

ROG Zephyrus G15 GA503Q: Test device provided by Asus Germany
ROG Zephyrus G15 GA503Q: Test device provided by Asus Germany

As long as you're aware of the fact that the GeForce RTX 3080 laptop version can only unfold its potential to a limited extent due to Asus's low TDP setting and that it can be slower than a fast RTX 3070 laptop, the ROG Zephyrus G15 GA503Q cuts a fine figure.

One of the biggest highlights turns out to be the WQHD panel, since it attracts customers with 165 Hz, relatively fast response times, FreeSync, and good color-space coverage.

Other selling points are the surprisingly rich sound, the long battery life, and the sleek design. In terms of looks, the white edition stands out nicely from the competition.

We didn't like the noise level in 3D mode and the keyboard layout as much. The fact that Asus omits a webcam and solders part of the RAM is also annoying.

Price and availability

You will soon be able to purchase our test configuration directly from the manufacturer at a price of $2,499.99. You will also be able to find an RTX 3070 version with 16 GB of RAM in the Eclipse Gray color variant on BestBuy for $1,799.99.

Asus ROG Zephyrus G15 GA503Q - 01/31/2021 v7
Florian Glaser

Chassis
81 / 98 → 83%
Keyboard
73%
Pointing Device
88%
Connectivity
55 / 80 → 69%
Weight
63 / 10-66 → 95%
Battery
87 / 95 → 92%
Display
86%
Games Performance
96%
Application Performance
95%
Temperature
77 / 95 → 81%
Noise
75 / 90 → 83%
Audio
88%
Average
74%
84%
Gaming - Weighted Average

Pricecompare

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> Notebook / Laptop Reviews and News > Reviews > Asus ROG Zephyrus G15 laptop review: Eye-catcher
Florian Glaser, 2021-02- 2 (Update: 2021-02- 3)
Florian Glaser
Editor of the original article: Florian Glaser - Managing Editor Gaming
Growing up with MS-DOS and Windows 3.1 in the early 90s, I discovered my interest in computers in my childhood. Especially computer games radiated a great fascination for me even then. From Monkey Island to Lands of Lore to Doom, everything was gambled that you could get your hands on. I have been working for Notebookcheck since 2009 with focus on high-performance gaming notebooks.