Notebookcheck

Lenovo ThinkPad X380 Yoga (i7-8550U, FHD) Convertible Review

Sascha Mölck (translated by Stanislav Kokhanyuk), 03/17/2018

The same case but with a different name. The ThinkPad X380 shines with a fast NVMe SSD, a thin case and great battery life. The built-in quad-core Core i7 CPU cannot maintain its full performance. The Windows operating system is not included. Linux users, however, will be quite happy with the Linux compatibility of the convertible.

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The ThinkPad X380 is the successor to the identically built 13.3-inch ThinkPad Yoga 370. Visually, there are no differences between the two devices. There are also not many differences in terms of hardware. With the X380 models, Lenovo makes use of Intel’s quad-core ULV processors. The Yoga 370, on the other hand, relies on dual-core CPUs. The competing devices include the HP EliteBook x360 1030 G2 and the Dell XPS 13 9365-4537 2-in-1 

Because the ThinkPad X380 and the ThinkPad Yoga 370 are identically built, we shall skip the sections in this review that deal with the case, the ports, the input devices and the speakers. You can find all the relevant information in our review of the ThinkPad Yoga 370.

Lenovo ThinkPad X380 Yoga 20LJS02W00 (ThinkPad X380 Yoga Series)
Graphics adapter
Intel UHD Graphics 620, Core: 300-1150 MHz, Dual channel, 23.20.16.4905
Memory
16384 MB 
, DDR4-2400, dual channel, RAM soldered-in, no RAM slots
Display
13.3 inch 16:9, 1920 x 1080 pixel 166 PPI, capacitive, 10-point multi-touch, native pen support, Lenovo M133NWF4 R3, IPS, glossy: yes
Mainboard
Intel Kaby Lake-U iHDCP 2.2 Premium PCH
Storage
Samsung SSD PM981 MZVLB512HAJQ-000L7, 512 GB 
, NVMe, M.2-2280, 256 GB free
Soundcard
Conexant CX8200 @ Intel Sunrise Point-LP PCH - High Definition Audio Controller
Connections
2 USB 3.0 / 3.1 Gen1, 1 USB 3.1 Gen2, 1 Thunderbolt, 1 HDMI, 1 DisplayPort, 1 Kensington Lock, Audio Connections: microphone/headphone combo audio jack, Card Reader: MicroSD, 1 Fingerprint Reader, NFC, Brightness Sensor, Sensors: motion sensor, TPM 2.0
Networking
Intel Ethernet Connection I219-V (10/100/1000MBit), Intel Dual Band Wireless-AC 8265 (a/b/g/n/ac), Bluetooth 4.2
Size
height x width x depth (in mm): 18.2 x 313.5 x 222.2 ( = 0.72 x 12.34 x 8.75 in)
Battery
51 Wh, 3340 mAh Lithium-Ion, 15.28 V
Camera
Webcam: HD
Additional features
Speakers: Stereo, Keyboard: Chiclet-style, Keyboard Light: yes, Thinkpad Pen Pro, stylus case, 12 Months Warranty
Weight
1.43 kg ( = 50.44 oz / 3.15 pounds), Power Supply: 359 g ( = 12.66 oz / 0.79 pounds)
Price
1299 Euro

 

Size Comparison

SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Lenovo ThinkPad Yoga 370-20JJS00100
  (Toshiba Exceria Pro M401)
65.9 MB/s ∼100% +6%
Lenovo ThinkPad X380 Yoga 20LJS02W00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
61.9 MB/s ∼94%
Average of class Convertible
  (7.5 - 197, n=95)
58.9 MB/s ∼89% -5%
maximum AS SSD Seq Read Test (1GB)
Lenovo ThinkPad X380 Yoga 20LJS02W00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
87.8 MB/s ∼100%
Lenovo ThinkPad Yoga 370-20JJS00100
  (Toshiba Exceria Pro M401)
83.9 MB/s ∼96% -4%
Average of class Convertible
  (24 - 246, n=92)
76.2 MB/s ∼87% -13%
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Lenovo ThinkPad Yoga 370-20JJS00100
Intel Dual Band Wireless-AC 8265
675 MBit/s ∼100% +31%
HP EliteBook x360 1030 G2
Intel Dual Band Wireless-AC 8265
613 MBit/s ∼91% +19%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Dual Band Wireless-AC 8265
517 MBit/s ∼77%
Average of class Convertible
  (38.3 - 678, n=97)
474 MBit/s ∼70% -8%
Dell XPS 13 9365-4537 2-in-1
Intel Dual Band Wireless-AC 8265
208 MBit/s ∼31% -60%
iperf3 Client (transmit) TCP 1 m 4M x10
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Dual Band Wireless-AC 8265
666 MBit/s ∼100%
Lenovo ThinkPad Yoga 370-20JJS00100
Intel Dual Band Wireless-AC 8265
522 MBit/s ∼78% -22%
Average of class Convertible
  (39.2 - 685, n=97)
484 MBit/s ∼73% -27%
HP EliteBook x360 1030 G2
Intel Dual Band Wireless-AC 8265
455 MBit/s ∼68% -32%
Dell XPS 13 9365-4537 2-in-1
Intel Dual Band Wireless-AC 8265
142 MBit/s ∼21% -79%

RAM and LTE - The X380 offers more hardware configurations than the ThinkPad Yoga 370

The ThinkPad X380 Yoga allows a hardware combination of an LTE modem and 16 GB of RAM.
The ThinkPad X380 Yoga allows a hardware combination of an LTE modem and 16 GB of RAM.

While ThinkPad Yoga 370 models that have a built-in LTE modem come with soldered-in RAM (maximum of 8 GB), models without the modem feature a RAM slot. This is over now. With the ThinkPad X380, Lenovo relies exclusively on soldered-in RAM.


The differing RAM configurations of the ThinkPad Yoga 370 made models with the modem and 16 GB of RAM impossible. In this respect, the X380 looks much better. There are X380 models that feature 16 GB of RAM and an LTE modem on Lenovo’s website.

The X380 Yoga does not include WWAN antennas.
The X380 Yoga does not include WWAN antennas.

Speaking of LTE, our review device has a slot for an LTE modem and a SIM card. However, the LTE modem cannot be installed, because the necessary antennas are missing. Here, Lenovo should have thought more about the users and included the appropriate antennas. The only way to put in the modem is to replace the display unit with a model that has built-in WWAN antennas.

Linux and the ThinkPad X380 Yoga

In the comments section of our review of the ThinkPad Yoga 370, a user asked us whether it was possible to use the touchscreen and the included stylus in Linux. Because we no longer have the ThinkPad Yoga 370 on hand, we decided to try this with our current review device. For this, we installed Ubuntu 17.10.1. During the installation, the touchscreen is recognized and engaged. After that, the touchscreen can register inputs made with the fingers or the stylus. However, it still requires some fine-tuning, because it is still quite difficult to launch a program from the dock with the stylus. Tapping the program’s icon does not launch the program but simply highlights it.

Please note: The X380 comes equipped with a number of different displays. Therefore, the above-written statements only apply to ThinkPad models that have the same display as our review device.

The hardware is recognized and engaged.
The hardware is recognized and engaged.
The touchscreen and the stylus can be used.
The touchscreen and the stylus can be used.

The rest of the hardware functions well, straight out of the box. This includes the function keys, the Wi-Fi module and the keyboard backlight. The GPU hardware acceleration is also available. This is why 4K YouTube videos can be played back without any problems. Steam can also be installed and started.

The following video formats feature support for hardware acceleration.
The following video formats feature support for hardware acceleration.
Rocket League on the ThinkPad
Rocket League on the ThinkPad

Display - the screen of the Lenovo convertible offers a lot of contrast and good viewing angles

The 13.3-inch touchscreen has a native resolution of 1920x1080. The brightness (301.6 cd/m²) and the contrast ratio (1963:1) in particular are sure to please. 

Unfortunately, at 90% brightness and below, the screen exhibits PWM flickering with a frequency of 1000 Hz. Therefore, susceptible individuals may experience headaches and eyestrain.  

Pixel arrangement
Pixel arrangement
No screen bleeding
No screen bleeding
305
cd/m²
315
cd/m²
285
cd/m²
305
cd/m²
314
cd/m²
308
cd/m²
266
cd/m²
315
cd/m²
301
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 315 cd/m² Average: 301.6 cd/m² Minimum: 6.7 cd/m²
Brightness Distribution: 84 %
Center on Battery: 314 cd/m²
Contrast: 1963:1 (Black: 0.16 cd/m²)
ΔE Color 5.73 | 0.4-29.43 Ø6.3
ΔE Greyscale 7.39 | 0.64-98 Ø6.5
96% sRGB (Argyll 3D) 61% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.14
Lenovo ThinkPad X380 Yoga 20LJS02W00
IPS, 1920x1080, 13.3
Lenovo ThinkPad Yoga 370-20JJS00100
IPS LED, 1920x1080, 13.3
Dell XPS 13 9365-4537 2-in-1
IPS, 3200x1800, 13.3
HP EliteBook x360 1030 G2
IPS, 1920x1080, 13.3
Response Times
-25%
4%
-2%
Response Time Grey 50% / Grey 80% *
50 (24, 26)
42 (21.2, 20.8)
16%
48 (26, 22)
4%
55.2 (21.2, 34)
-10%
Response Time Black / White *
29 (15, 14)
32.8 (19.2, 13.6)
-13%
28 (16, 12)
3%
27.2 (7.6, 19.6)
6%
PWM Frequency
1000 (90)
217.4 (50)
-78%
Screen
-6%
12%
-11%
Brightness middle
314
374
19%
348
11%
262
-17%
Brightness
302
356
18%
306
1%
256
-15%
Brightness Distribution
84
87
4%
78
-7%
83
-1%
Black Level *
0.16
0.33
-106%
0.2
-25%
0.25
-56%
Contrast
1963
1133
-42%
1740
-11%
1048
-47%
Colorchecker DeltaE2000 *
5.73
4.7
18%
2.79
51%
5.13
10%
Colorchecker DeltaE2000 max. *
10.43
9.5
9%
5.53
47%
9.46
9%
Greyscale DeltaE2000 *
7.39
6.5
12%
3.47
53%
6.23
16%
Gamma
2.14 112%
2.19 110%
2.54 94%
2.45 98%
CCT
6351 102%
7086 92%
6564 99%
6413 101%
Color Space (Percent of AdobeRGB 1998)
61
63.1
3%
60
-2%
57.84
-5%
Color Space (Percent of sRGB)
96
97.2
1%
93
-3%
88.57
-8%
Total Average (Program / Settings)
-16% / -11%
8% / 10%
-7% / -10%

* ... smaller is better

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 1000 Hz ≤ 90 % brightness setting

The display backlight flickers at 1000 Hz (Likely utilizing PWM) Flickering detected at a brightness setting of 90 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 1000 Hz is quite high, so most users sensitive to PWM should not notice any flickering.

In comparison: 54 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8895 (minimum: 43 - maximum: 142900) Hz was measured.

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

Right out of the box, we observed a DeltaE 2000 color deviation of 5.73. Therefore, the display is not far away from the target value (DeltaE less than 3). The screen does not suffer from a bluish cast. The display covers neither the sRGB nor the AdobeRGB color space entirely. Here, it manages to cover 96% of the sRGB color space and 61% of the AdobeRGB color space. 

By means of our color profile, the color reproduction can be improved. However before downloading it, you should make sure that your laptop has the same display model (manufacturer + model number) as our review device, because otherwise our color profile can result in worse color reproduction. Displays from different manufacturers can often be found within notebooks from the same model range. 

CalMAN - Color Checker
CalMAN - Color Checker
CalMAN - Grayscale
CalMAN - Grayscale
CalMAN - Saturation
CalMAN - Saturation

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
29 ms ... rise ↗ and fall ↘ combined↗ 15 ms rise
↘ 14 ms fall
The screen shows relatively slow response rates in our tests and may be too slow for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 68 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (25.9 ms).
       Response Time 50% Grey to 80% Grey
50 ms ... rise ↗ and fall ↘ combined↗ 24 ms rise
↘ 26 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. » 83 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (41.4 ms).

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Lenovo equips the ThinkPad with an IPS panel with good viewing angles. Therefore, the screen content can be read from any position. Outdoor usability is limited by the glossy screen surface. You can only use the device outdoors when there are no reflections on the screen.

The ThinkPad outdoors (shot in direct sunlight; the sun is behind the display)
The ThinkPad outdoors (shot in direct sunlight; the sun is behind the display)
The ThinkPad outdoors (shot in direct sunlight; the display is facing the sun)
The ThinkPad outdoors (shot in direct sunlight; the display is facing the sun)
Viewing angles
Viewing angles

Performance - the X380 is at its all-time best

With the ThinkPad X380, Lenovo delivers a thin 13.3-inch convertible for home and professional users that offers more than enough performance for such usage scenarios as office work and Internet browsing. The model in our review represents a special model for apprentices, school/college students and teachers, which can be had for 1299 Euros ($1597) if you can provide proof that you are a student or a teacher. However, this model does not include Windows. Other hardware variants are also available. At the time of this review, the lowest-priced model costs between 1100 ($1352) and 1200 ($1475) Euros.

CPU-Z
CPU-Z
CPU-Z
CPU-Z
GPU-Z
HWInfo
LatencyMon
 

Processor - the Core i7 in the ThinkPad cannot achieve its full performance.

The ThinkPad comes with a quad-core (Kaby Lake Refresh) Core i7-8550U CPU from Intel. What we have here is a ULV CPU with a TDP of 15 watts that supports Hyperthreading (it can process two threads per core). The CPU has a base clock of 1.8 GHz and a boost clock of up to 4 GHz.

In the multi-core section of the Cinebench benchmarks, the processor operates similarly both when running on battery power and when plugged in. The CPU begins the benchmark with a frequency of 2.2 to 2.5 GHz. After a few seconds, the clock rate falls down to 1.7 to 1.8 GHz. In the single-core benchmark, the CPU operates at 3.4 GHz when plugged in and at 3 to 3.2 GHz when running on battery power.

Multi-core (plugged in)
Multi-core (plugged in)
Single-core (plugged in)
Single-core (plugged in)
Intel XTU
Intel XTU

We check if the Turbo boost can be used continually while on battery power by running the Cinebench R15 multi-core benchmark in a continuous loop for 30 minutes. The Turbo boost is used; however, the clock speed falls down after every subsequent benchmark run. 

In this aspect, there is a significant difference between the X380 and the ThinkPad Yoga 370. The Core i5-7200U that is used in that device can maintain its Turbo boost frequency at high levels over an extended period of time.

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Cinebench R15 CPU Multi 64 Bit

The results in the CPU benchmarks are on the normal level for the processor used in our review device. However, the CPU can utilize the Turbo boost in multi-core applications only for a short time (and when the Turbo boost is used, it is only utilized at low levels). Things look better when it comes to single-core applications.

Cinebench R10 Shading 32Bit
10316
Cinebench R10 Rendering Multiple CPUs 32Bit
15705
Cinebench R10 Rendering Single 32Bit
6098
Cinebench R11.5 OpenGL 64Bit
29.64 fps
Cinebench R11.5 CPU Multi 64Bit
4.38 Points
Cinebench R11.5 CPU Single 64Bit
1.51 Points
Cinebench R15 Ref. Match 64Bit
97.8 %
Cinebench R15 OpenGL 64Bit
47.32 fps
Cinebench R15 CPU Multi 64Bit
509 Points
Cinebench R15 CPU Single 64Bit
155 Points
Help
Cinebench R15
CPU Single 64Bit
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U
170 Points ∼100% +10%
Lenovo ThinkPad X1 Yoga 2018-20LES01W00
Intel Core i7-8550U
168 Points ∼99% +8%
Average Intel Core i7-8550U
  (108 - 172, n=50)
161 Points ∼95% +4%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U
155 Points ∼91%
HP Spectre x360 13t-ae000
Intel Core i7-8550U
152 Points ∼89% -2%
HP EliteBook x360 1030 G2
Intel Core i5-7300U
144 Points ∼85% -7%
Lenovo ThinkPad Yoga 370-20JJS00100
Intel Core i5-7200U
126 Points ∼74% -19%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
119 Points ∼70% -23%
Average of class Convertible
  (19 - 177, n=253)
99.6 Points ∼59% -36%
CPU Multi 64Bit
Lenovo ThinkPad X1 Yoga 2018-20LES01W00
Intel Core i7-8550U
699 Points ∼100% +37%
Average Intel Core i7-8550U
  (301 - 761, n=52)
577 Points ∼83% +13%
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U
558 Points ∼80% +10%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U
509 Points ∼73%
HP Spectre x360 13t-ae000
Intel Core i7-8550U
489 Points ∼70% -4%
HP EliteBook x360 1030 G2
Intel Core i5-7300U
346 Points ∼49% -32%
Lenovo ThinkPad Yoga 370-20JJS00100
Intel Core i5-7200U
312 Points ∼45% -39%
Average of class Convertible
  (33 - 761, n=259)
266 Points ∼38% -48%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
257 Points ∼37% -50%
Cinebench R10
Rendering Single 32Bit
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U
6494 Points ∼100% +6%
Average Intel Core i7-8550U
  (4202 - 8211, n=28)
6329 Points ∼97% +4%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U
6098 Points ∼94%
HP EliteBook x360 1030 G2
Intel Core i5-7300U
5524 Points ∼85% -9%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
4838 Points ∼74% -21%
Average of class Convertible
  (466 - 7508, n=225)
3298 Points ∼51% -46%
Rendering Multiple CPUs 32Bit
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U
18269 Points ∼100% +16%
Average Intel Core i7-8550U
  (11694 - 24180, n=28)
17928 Points ∼98% +14%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U
15705 Points ∼86%
HP EliteBook x360 1030 G2
Intel Core i5-7300U
12524 Points ∼69% -20%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
8946 Points ∼49% -43%
Average of class Convertible
  (706 - 24180, n=221)
7503 Points ∼41% -52%
Geekbench 3
32 Bit Multi-Core Score
Average Intel Core i7-8550U
  (8918 - 14144, n=9)
12461 Points ∼100% +14%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U
10917 Points ∼88%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
6178 Points ∼50% -43%
Average of class Convertible
  (954 - 14144, n=89)
4994 Points ∼40% -54%
32 Bit Single-Core Score
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U
3759 Points ∼100%
Average Intel Core i7-8550U
  (2471 - 4020, n=9)
3697 Points ∼98% -2%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
3160 Points ∼84% -16%
Average of class Convertible
  (561 - 3933, n=89)
2109 Points ∼56% -44%
Geekbench 4.0
64 Bit Multi-Core Score
Average Intel Core i7-8550U
  (10747 - 15294, n=7)
13205 Points ∼100% +16%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U
11350 Points ∼86%
Average of class Convertible
  (856 - 14519, n=29)
7196 Points ∼54% -37%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
6627 Points ∼50% -42%
64 Bit Single-Core Score
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U
4805 Points ∼100%
Average Intel Core i7-8550U
  (4523 - 4858, n=7)
4721 Points ∼98% -2%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
3733 Points ∼78% -22%
Average of class Convertible
  (805 - 4858, n=29)
3066 Points ∼64% -36%
Geekbench 4.1/4.2
64 Bit Multi-Core Score
Average Intel Core i7-8550U
  (10869 - 16294, n=8)
14050 Points ∼100% +18%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U
11870 Points ∼84%
Average of class Convertible
  (2296 - 15196, n=21)
9115 Points ∼65% -23%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
6921 Points ∼49% -42%
64 Bit Single-Core Score
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U
4944 Points ∼100%
Average Intel Core i7-8550U
  (4700 - 4997, n=8)
4884 Points ∼99% -1%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
3745 Points ∼76% -24%
Average of class Convertible
  (880 - 4977, n=21)
3595 Points ∼73% -27%
JetStream 1.1 - 1.1 Total Score
Acer Spin 5 SP515-51GN-80A3
Intel Core i7-8550U (Edge 41.16299.15.0)
286.26 Points ∼100% +22%
Average Intel Core i7-8550U
  (142 - 288, n=39)
244 Points ∼85% +4%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel Core i7-8550U (Ede 41)
234.34 Points ∼82%
HP EliteBook x360 1030 G2
Intel Core i5-7300U (Edge 38.14393.0.0)
233.17 Points ∼81% 0%
HP Spectre x360 13t-ae000
Intel Core i7-8550U
225.56 Points ∼79% -4%
Lenovo ThinkPad Yoga 370-20JJS00100
Intel Core i5-7200U (Edge)
211.47 Points ∼74% -10%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54 (Edge 40)
198.92 Points ∼69% -15%
Average of class Convertible
  (33.5 - 288, n=134)
168 Points ∼59% -28%

System Performance - the X380 Yoga is very responsive

A Core i7 CPU and a fast NVMe SSD create a very responsive system. We did not encounter any problems. The ThinkPad provides more than enough performance for office work and Internet browsing. The very good results in the PCMark benchmarks confirm this impression. The performance cannot be increased any further. Lenovo has already exhausted all possibilities.

The soldered-in RAM runs in dual channel mode.
The soldered-in RAM runs in dual channel mode.
PCMark 7 Score
5898 points
PCMark 8 Home Score Accelerated v2
3687 points
PCMark 8 Creative Score Accelerated v2
4788 points
PCMark 8 Work Score Accelerated v2
4656 points
Help
PCMark 8
Work Score Accelerated v2
HP EliteBook x360 1030 G2
HD Graphics 620, 7300U, Sandisk SD8TN8U-256G-1006
4803 Points ∼100% +3%
Lenovo ThinkPad X380 Yoga 20LJS02W00
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ-000L7
4656 Points ∼97%
Average Intel Core i7-8550U, Intel UHD Graphics 620
  (3518 - 5154, n=17)
4545 Points ∼95% -2%
Lenovo ThinkPad Yoga 370-20JJS00100
HD Graphics 620, 7200U, Toshiba NVMe THNSF5512GPUK
4314 Points ∼90% -7%
Average of class Convertible
  (1007 - 5281, n=187)
3618 Points ∼75% -22%
Home Score Accelerated v2
HP EliteBook x360 1030 G2
HD Graphics 620, 7300U, Sandisk SD8TN8U-256G-1006
3774 Points ∼100% +2%
Lenovo ThinkPad X380 Yoga 20LJS02W00
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ-000L7
3687 Points ∼98%
Average Intel Core i7-8550U, Intel UHD Graphics 620
  (3255 - 4017, n=19)
3632 Points ∼96% -1%
Lenovo ThinkPad Yoga 370-20JJS00100
HD Graphics 620, 7200U, Toshiba NVMe THNSF5512GPUK
3539 Points ∼94% -4%
Average of class Convertible
  (858 - 4741, n=229)
2727 Points ∼72% -26%
Dell XPS 13 9365-4537 2-in-1
HD Graphics 615, 7Y54, Toshiba NVMe THNSN5256GPUK
2706 Points ∼72% -27%
PCMark 10
Digital Content Creation
Average Intel Core i7-8550U, Intel UHD Graphics 620
  (1506 - 3062, n=14)
2631 Points ∼100% +7%
Lenovo ThinkPad X380 Yoga 20LJS02W00
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ-000L7
2467 Points ∼94%
Average of class Convertible
  (727 - 4342, n=51)
2406 Points ∼91% -2%
Productivity
Lenovo ThinkPad X380 Yoga 20LJS02W00
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ-000L7
6791 Points ∼100%
Average Intel Core i7-8550U, Intel UHD Graphics 620
  (4962 - 6860, n=14)
6128 Points ∼90% -10%
Average of class Convertible
  (1162 - 6860, n=52)
5104 Points ∼75% -25%
Essentials
Lenovo ThinkPad X380 Yoga 20LJS02W00
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ-000L7
7763 Points ∼100%
Average Intel Core i7-8550U, Intel UHD Graphics 620
  (6628 - 8660, n=14)
7644 Points ∼98% -2%
Average of class Convertible
  (2489 - 9289, n=52)
6702 Points ∼86% -14%
Score
Lenovo ThinkPad X380 Yoga 20LJS02W00
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ-000L7
3632 Points ∼100%
Average Intel Core i7-8550U, Intel UHD Graphics 620
  (2629 - 4012, n=16)
3500 Points ∼96% -4%
Average of class Convertible
  (1006 - 4347, n=53)
3087 Points ∼85% -15%

Storage Devices - Samsung PM981 SSD is exceptionally fast

An NVMe SSD from Samsung serves as the system drive. It is a 512 GB model in the M.2-2280 form-factor. NVMe SSDs achieve significantly higher transfer rates than SATA-III models because they are connected via PCI Express 3.0 x4. This is why the built-in SSD delivers outstanding transfer rates. 

An NVMe SSD is included.
An NVMe SSD is included.
Samsung SSD PM981 MZVLB512HAJQ-000L7
Sequential Read: 2486 MB/s
Sequential Write: 1341 MB/s
512K Read: 1788 MB/s
512K Write: 1885 MB/s
4K Read: 62.32 MB/s
4K Write: 145.6 MB/s
4K QD32 Read: 385.5 MB/s
4K QD32 Write: 534.8 MB/s
Lenovo ThinkPad X380 Yoga 20LJS02W00
Samsung SSD PM981 MZVLB512HAJQ-000L7
Lenovo ThinkPad Yoga 370-20JJS00100
Toshiba NVMe THNSF5512GPUK
Dell XPS 13 9365-4537 2-in-1
Toshiba NVMe THNSN5256GPUK
HP EliteBook x360 1030 G2
Sandisk SD8TN8U-256G-1006
Average Samsung SSD PM981 MZVLB512HAJQ-000L7
 
CrystalDiskMark 3.0
-40%
-53%
-63%
-12%
Write 4k QD32
534.8
414.5
-22%
234.1
-56%
225.2
-58%
444 (265 - 706, n=9)
-17%
Read 4k QD32
385.5
460.8
20%
335.9
-13%
311.3
-19%
394 (336 - 447, n=9)
2%
Write 4k
145.6
127.3
-13%
108.3
-26%
56.48
-61%
138 (108 - 161, n=9)
-5%
Read 4k
62.32
30.55
-51%
29.26
-53%
29.43
-53%
62.8 (59.3 - 66.9, n=9)
1%
Write 512
1885
483.1
-74%
373.7
-80%
372.5
-80%
1438 (565 - 1885, n=9)
-24%
Read 512
1788
679.9
-62%
528.4
-70%
312.3
-83%
1049 (419 - 1799, n=9)
-41%
Write Seq
1341
484.5
-64%
324.1
-76%
443.6
-67%
1479 (924 - 1889, n=9)
10%
Read Seq
2486
1070
-57%
1159
-53%
467.1
-81%
1939 (922 - 2588, n=9)
-22%

Graphics Card - Intel’s UHD Graphics 620 grants the Lenovo ThinkPad enough performance for office work and Internet surfing

Intel’s UHD Graphics 620 serves as the ThinkPad’s graphics processing unit. It supports DirectX 12 and operates at frequencies between 300 and 1150 MHz. The results in the 3DMark benchmarks are on the normal level for this kind of GPU. It benefits from the dual-channel-enabled RAM. Because the RAM runs in dual-channel mode the graphics unit can be better utilized, hence a boost in performance.

3DMark 06 Standard
8282 points
3DMark 11 Performance
1801 points
3DMark Cloud Gate Standard Score
5821 points
3DMark Fire Strike Score
786 points
Help
3DMark 11 - 1280x720 Performance GPU
Average Intel UHD Graphics 620
  (990 - 1915, n=79)
1640 Points ∼100% +2%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel UHD Graphics 620, Intel Core i7-8550U
1614 Points ∼98%
HP EliteBook x360 1030 G2
Intel HD Graphics 620, Intel Core i5-7300U
1476 Points ∼90% -9%
Lenovo ThinkPad Yoga 370-20JJS00100
Intel HD Graphics 620, Intel Core i5-7200U
1338 Points ∼82% -17%
Dell XPS 13 9365-4537 2-in-1
Intel HD Graphics 615, Intel Core i5-7Y54
1175 Points ∼72% -27%
Average of class Convertible
  (173 - 7483, n=282)
1155 Points ∼70% -28%
3DMark
1920x1080 Fire Strike Graphics
Average Intel UHD Graphics 620
  (732 - 1336, n=70)
1064 Points ∼100% +23%
HP EliteBook x360 1030 G2
Intel HD Graphics 620, Intel Core i5-7300U
972 Points ∼91% +13%
Average of class Convertible
  (132 - 5965, n=202)
949 Points ∼89% +10%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel UHD Graphics 620, Intel Core i7-8550U
862 Points ∼81%
Lenovo ThinkPad Yoga 370-20JJS00100
Intel HD Graphics 620, Intel Core i5-7200U
827 Points ∼78% -4%
1280x720 Cloud Gate Standard Graphics
Average Intel UHD Graphics 620
  (5562 - 10493, n=72)
8621 Points ∼100% +25%
HP EliteBook x360 1030 G2
Intel HD Graphics 620, Intel Core i5-7300U
8220 Points ∼95% +19%
Lenovo ThinkPad Yoga 370-20JJS00100
Intel HD Graphics 620, Intel Core i5-7200U
7059 Points ∼82% +2%
Lenovo ThinkPad X380 Yoga 20LJS02W00
Intel UHD Graphics 620, Intel Core i7-8550U
6910 Points ∼80%
Average of class Convertible
  (1023 - 37388, n=245)
6269 Points ∼73% -9%

Gaming Performance - a number of classics are playable on the ThinkPad convertible

The GPU-CPU combination of the notebook can run some games smoothly. This applies to the titles that have low system requirements. However, one will have to be content with running these games at low resolutions and on the low settings. Thanks to the dual-channel-enabled RAM, the frame rates of the X380 Yoga are higher than those of comparable devices whose RAM runs in single-channel mode. 

low med. high ultra
Tomb Raider (2013) 85.843.328.212.5fps
BioShock Infinite (2013) 62.932.426.79.3fps
Rise of the Tomb Raider (2016) 15.59.54.93.1fps

Emissions - the ThinkPad produces neither much noise nor much heat

System Noise - the X380 Yoga does not make a lot of noise

When idle, the fan stands still. This leads to silent operation. Under load, things are different: When playing back a 4K video on YouTube, the fan becomes audible. However, the fan does not become annoying, because it operates at low speeds. Under full load, the fan does not spin very fast. During our stress test, we measured a maximum noise level of 35.2 dB(A).

Noise Level

Idle
30.4 / 30.4 / 30.4 dB(A)
Load
34.2 / 35.2 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: 30.4 dB(A)
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2033.435.13233.42531.735.330.231.73130.440.333.430.44029.632.228.529.65035.635.729.435.66327.72927.827.78027.129.526.127.110026.226.625.626.212524.12524.524.116024.423.623.224.420023.723.122.323.725023.122.42123.131522.722.420.922.740021.621.72021.650021.921.619.421.963021.220.61921.280022.3211822.3100024.122.917.524.1125022.821.517.422.8160022.621.517.422.6200023.622.817.723.6250025.524.517.725.5315025.724.318.525.7400024.12318.324.150002220.418.322630020.92018.420.9800019.118.718.819.11000018.718.618.718.71250018.618.518.618.61600018.818.619.318.8SPL35.234.230.535.2N2.221.42.2median 22.7Lenovo ThinkPad X380 Yoga 20LJS02W00median 21.7median 18.7median 22.7Delta1.11.41.71.1hearing rangehide median Fan Noise
Lenovo ThinkPad X380 Yoga 20LJS02W00
8550U, UHD Graphics 620
Lenovo ThinkPad Yoga 370-20JJS00100
7200U, HD Graphics 620
HP EliteBook x360 1030 G2
7300U, HD Graphics 620
Noise
2%
3%
off / environment *
30.4
28.6
6%
29
5%
Idle Minimum *
30.4
28.6
6%
29
5%
Idle Average *
30.4
28.6
6%
29
5%
Idle Maximum *
30.4
31.2
-3%
29
5%
Load Average *
34.2
33.7
1%
33.6
2%
Load Maximum *
35.2
36.7
-4%
35.8
-2%

* ... smaller is better

Temperature - Lenovo’s convertible stays cool

The ThinkPad during the stress test.
The ThinkPad during the stress test.

In our stress test (Prime95 and FurMark running for at least one hour), the X380 Yoga performs similarly both when it is plugged in and when it is running on battery power. The processor (600 MHz) and the graphics card (400 MHz) begin the test at strongly reduced clock rates. Subsequently, the clock speeds fall even further down to 500 MHz for the CPU and 250 to 300 MHz for the GPU. 

The convertible does not get excessively hot. During the stress test, the 40 °C (104 °F) Celsius mark is exceeded only at two measurement points. 

Max. Load
 38.5 °C
101 F
40.2 °C
104 F
29.9 °C
86 F
 
 37.9 °C
100 F
38.5 °C
101 F
29.1 °C
84 F
 
 29.7 °C
85 F
26 °C
79 F
25.1 °C
77 F
 
Maximum: 40.2 °C = 104 F
Average: 32.8 °C = 91 F
28.1 °C
83 F
46 °C
115 F
39.7 °C
103 F
27.2 °C
81 F
34 °C
93 F
36 °C
97 F
23 °C
73 F
25 °C
77 F
25.1 °C
77 F
Maximum: 46 °C = 115 F
Average: 31.6 °C = 89 F
Power Supply (max.)  30.7 °C = 87 F | Room Temperature 22.2 °C = 72 F | FIRT 550-Pocket
Heat distribution under load - topside
Heat distribution under load - topside
Heat distribution under load - bottom side
Heat distribution under load - bottom side
Heat distribution at idle - topside
Heat distribution at idle - topside
Heat distribution at idle - bottom side
Heat distribution at idle - bottom side
Lenovo ThinkPad X380 Yoga 20LJS02W00
8550U, UHD Graphics 620
Lenovo ThinkPad Yoga 370-20JJS00100
7200U, HD Graphics 620
Dell XPS 13 9365-4537 2-in-1
7Y54, HD Graphics 615
HP EliteBook x360 1030 G2
7300U, HD Graphics 620
Heat
-9%
4%
5%
Maximum Upper Side *
40.2
42
-4%
43.1
-7%
36.1
10%
Maximum Bottom *
46
48
-4%
41.7
9%
36.7
20%
Idle Upper Side *
25.2
28
-11%
23.8
6%
26.8
-6%
Idle Bottom *
25.8
29.7
-15%
23.7
8%
26.5
-3%

* ... smaller is better

Speakers

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs62032.83232.82533.230.233.23132.533.432.54029.328.529.35034.729.434.76327.827.827.88026.826.126.810025.625.625.612525.124.525.116026.223.226.220029.122.329.125031.32131.331545.620.945.640060.22060.250062.619.462.663064196480062.11862.1100063.317.563.3125061.817.461.8160069.617.469.6200066.317.766.3250064.117.764.131506718.567400066.718.366.7500061.918.361.9630056.618.456.6800056.318.856.3100005118.7511250047.418.647.41600037.219.337.2SPL76.530.576.5N35.71.435.7median 60.2Lenovo ThinkPad X380 Yoga 20LJS02W00median 18.7median 60.2Delta121.71235.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6Apple MacBook 12 (Early 2016) 1.1 GHzmedian 17.84.62.4hearing rangehide median Pink Noise
Lenovo ThinkPad X380 Yoga 20LJS02W00 audio analysis

(-) | not very loud speakers (69.6 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 29.7% lower than median
(±) | linearity of bass is average (8.9% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.5% away from median
(±) | linearity of mids is average (10.2% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.1% higher than median
(±) | linearity of highs is average (7.3% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (29.1% difference to median)
Compared to same class
» 80% of all tested devices in this class were better, 5% similar, 14% worse
» The best had a delta of 11%, average was 22%, worst was 53%
Compared to all devices tested
» 85% of all tested devices were better, 4% similar, 11% 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
» 2% of all tested devices in this class were better, 1% similar, 97% worse
» The best had a delta of 8%, average was 19%, worst was 47%
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 53%

Frequency diagram in comparison (checkboxes can be checked and unchecked!)

Energy Management - The ThinkPad X380 Yoga proves to be energy efficient and long-lasting

Energy Consumption - the X380 Yoga does not draw too much power

There are no abnormalities in terms of energy consumption to report. During idle operation, we measured a maximum power draw of 6.9 watts. During the stress test (Prime95 and FurMark running for at least one hour), the power consumption rises only to 34.4 watts, because the CPU and the GPU throttle down considerably. The nominal power draw of the AC adapter is 65 watts.

Power Consumption
Off / Standbydarklight 0.34 / 0.58 Watt
Idledarkmidlight 4 / 4.9 / 6.9 Watt
Load midlight 36 / 34.4 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Lenovo ThinkPad X380 Yoga 20LJS02W00
8550U, UHD Graphics 620
Lenovo ThinkPad Yoga 370-20JJS00100
7200U, HD Graphics 620
Dell XPS 13 9365-4537 2-in-1
7Y54, HD Graphics 615
HP EliteBook x360 1030 G2
7300U, HD Graphics 620
Power Consumption
-7%
-49%
2%
Idle Minimum *
4
3.6
10%
8.2
-105%
3.2
20%
Idle Average *
4.9
7.2
-47%
10.8
-120%
5.5
-12%
Idle Maximum *
6.9
8.4
-22%
12.7
-84%
6.5
6%
Load Average *
36
29.9
17%
22.6
37%
29.7
17%
Load Maximum *
34.4
32.2
6%
24.6
28%
41.3
-20%

* ... smaller is better

Battery Life - the ThinkPad X380 Yoga lasts for a while

In our practically oriented Wi-Fi test, the ThinkPad achieves a battery runtime of 8 hours and 31 minutes. This test simulates loads that are consistent with surfing the Internet. The “balanced” profile is selected and the display brightness is set to 150 cd/m². The convertible lasts for 9 hours and 10 minutes in our video test. During this test, the short film “Big Buck Bunny” (H.264, 1920x1080) is played back over and over again in a continuous loop. The communications modules are disabled, the energy saving profile is selected and the screen brightness is set to 150 cd/m².

All in all, the ThinkPad does somewhat better than its predecessor with the same battery capacity.

The battery offers a capacity of 51 Wh.
The battery offers a capacity of 51 Wh.
Battery Runtime
Idle (without WLAN, min brightness)
20h 50min
NBC WiFi Websurfing Battery Test 1.3 (Edge 41)
8h 31min
Big Buck Bunny H.264 1080p
9h 10min
Load (maximum brightness)
2h 18min
Lenovo ThinkPad X380 Yoga 20LJS02W00
8550U, UHD Graphics 620, 51 Wh
Lenovo ThinkPad Yoga 370-20JJS00100
7200U, HD Graphics 620, 51 Wh
Dell XPS 13 9365-4537 2-in-1
7Y54, HD Graphics 615, 46 Wh
HP EliteBook x360 1030 G2
7300U, HD Graphics 620, 57 Wh
Battery Runtime
-4%
-20%
33%
Reader / Idle
1250
1163
-7%
1387
11%
H.264
550
576
5%
659
20%
WiFi v1.3
511
488
-5%
410
-20%
630
23%
Load
138
127
-8%
244
77%

Verdict

Pros

+ IPS display
+ Full HD resolution
+ high-value case
+ maintenance options
+ NVMe SSD
+ Thunderbolt 3
+ great battery life

Cons

- the CPU cannot utilize its full performance
- PWM
- only a one-year warranty
- installing an LTE modem is impossible
- no operating system
The Lenovo Thinkpad X380 Yoga 20LJS02W00, provided courtesy of: CampusPoint
The Lenovo Thinkpad X380 Yoga 20LJS02W00, provided courtesy of: CampusPoint

No fundamental changes have been made to the ThinkPad X380 Yoga, when compared to its predecessor (ThinkPad Yoga 370). Besides a new name, Lenovo also introduces a new quad-core ULV processor from Intel.

The built-in Core i7-8550U processor offers more than enough performance for office work and Internet browsing. The processor can utilize its Turbo boost only to a limited extent and for a short time.

Overall, the Lenovo ThinkPad X380 Yoga can be described as a success. This is why the flaws (PWM flickering, one-year warranty, no WWAN antennas) seem all the more annoying. In fact, in this price range, such flaws should not even come up in the first place.

A very fast NVMe SSD makes for a very responsive system. The SSD can be replaced. For this, you will have to open up the case, which should not present any problems. Once the case is open, you will have access to the slot for the LTE modem. The SIM card slot is also provided. However, installing an LTE modem is out of the question, because our review device lacks WWAN antennas.

The backlit keyboard left a good impression. No wonder: We already know this keyboard from the ThinkPad Yoga 370. Furthermore, we need to mention the good battery life. The IPS-based touchscreen offers great viewing angles, good contrast and high brightness. Nevertheless, we do not expect to see PWM flickering in a device with such a price tag.           

Lenovo should really rethink its one-year warranty policy. It is obvious that wholesale buyers negotiate their own support terms. But this fact is of no use to the retail buyers. ThinkPad X380 Yoga models that are sold in retail or online stores should come, at the very least, with a three-year warranty. The price tag of the convertible and the purposes that Lenovo claims the device is supposed to serve demand such a warranty.

Lenovo ThinkPad X380 Yoga 20LJS02W00 - 03/09/2018 v6
Sascha Mölck

Chassis
87 / 98 → 89%
Keyboard
92%
Pointing Device
94%
Connectivity
74 / 80 → 92%
Weight
70 / 35-78 → 81%
Battery
91%
Display
83%
Games Performance
56 / 68 → 83%
Application Performance
87 / 87 → 100%
Temperature
92%
Noise
93%
Audio
50 / 91 → 55%
Camera
45 / 85 → 53%
Average
78%
87%
Convertible - Weighted Average

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> Notebook / Laptop Reviews and News > Reviews > Lenovo ThinkPad X380 Yoga (i7-8550U, FHD) Convertible Review
Sascha Mölck, 2018-03-17 (Update: 2018-03-27)