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Lenovo ThinkPad X12 Detachable Gen 1 Review: Laptop tablet hybrid with LTE & Tiger Lake UP4

X1 Tablet, but better. After years of ThinkPad tablet abstinence, Lenovo returns to the 2-in-1 market with the new Lenovo ThinkPad X12 Detachable Gen 1. The Lenovo X12 Tablet manages to impress us in our test - it turns out to be a worthy competitor to the Microsoft Surface Pro 7.
Benjamin Herzig, 👁 Andreas Osthoff (translated by Benjamin Herzig), 🇩🇪 🇳🇱 ...

Some time has passed since Lenovo introduced the last ThinkPad tablet. The Lenovo ThinkPad X1 Tablet Gen 3 appeared in 2018. Afterwards, no new machines were announced and the X1 Tablet Gen 3 was discontinued at some point. Lenovo seemingly conceded the segment to other manufacturers like Dell (Latitude 7210) and Microsoft with the Surface Pro 7 Plus

In 2021, Lenovo takes up the fight again, with the ThinkPad X12 Detachable Gen 1. With this device, Lenovo moves away from the flagship series ThinkPad X1 to the the regular, less expensive X series. Accordingly, our well equipped configuration with a Tiger Lake i7, 512 GB SSD and 16 GB RAM costs €1,630 (German Campus pricing) - roughly €100 cheaper than the X1 Tablet Gen 3, which we tested with an i5, a 256 GB SSD and 8 GB RAM.

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Lenovo ThinkPad X12 20UVS03G00
Processor
Intel Core i7-1160G7 4 x 2.1 - 4.4 GHz, 40 W PL2 / Short Burst, 12 W PL1 / Sustained, Tiger Lake UP4
Memory
16384 MB 
, LPDDR4X-4266, on-board, Quad Channel
Display
12.30 inch 3:2, 1920 x 1280 pixel 187 PPI, 10 Point Multitouch, native pen support, N123NCA-GS1, a-Si IPS LED, glossy: yes, detachable screen, 60 Hz
Mainboard
Intel Tiger Lake-UP4 PCH-LP
Storage
Toshiba BG4 KBG40ZNT512G, 512 GB 
, M.2 2242, NVMe PCIe 3, 431 GB free
Soundcard
Realtek ALC3306
Connections
1 USB 3.1 Gen2, 1 USB 4.0 40 Gbps, 1 Thunderbolt, USB-C Power Delivery (PD), 2 DisplayPort, 1 Kensington Lock, Audio Connections: 3.5mm Audio, 1 Fingerprint Reader, Sensors: Accelerometer, Gyroscope, Proximity Sensor, Inclinometer, Hall Sensor, 8 Point Pogo-Pin Connector
Networking
Intel Wi-Fi 6 AX201 (a/b/g/h/n = Wi-Fi 4/ac = Wi-Fi 5/ax = Wi-Fi 6), Fibocom L850-GL, LTE, GPS
Size
height x width x depth (in mm): 14.5 x 283.3 x 203.5 ( = 0.57 x 11.15 x 8.01 in)
Battery
42 Wh Lithium-Polymer
Operating System
Microsoft Windows 10 Pro 64 Bit
Additional features
Speakers: 1 Watt Stereo, Keyboard: 6 Row, 1.35 mm Travel, Chiclet, Keyboard Light: yes, 65 Watt USB C Charger, Lenovo Digital Pen, Lenovo Commercial Vantage, 36 Months Warranty
Weight
1.107 kg ( = 39.05 oz / 2.44 pounds), Power Supply: 322 g ( = 11.36 oz / 0.71 pounds)
Price
1630 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

mögliche Konkurrenten im Vergleich

Rating
Date
Model
Weight
Height
Size
Resolution
Best Price
89 %
04/2021
Lenovo ThinkPad X12 20UVS03G00
i7-1160G7, Iris Xe G7 96EUs
1.1 kg14.5 mm12.30"1920x1280
88 %
01/2019
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
i5-8250U, UHD Graphics 620
1.3 kg8.9 mm13.00"3000x2000
89 %
03/2021
Microsoft Surface Pro 7 Plus
i5-1135G7, Iris Xe G7 80EUs
796 g8.5 mm12.30"2736x1824
90 %
03/2021
Dell Latitude 12 7210 2-in-1
i7-10610U, UHD Graphics 620
850 g9.35 mm12.30"1920x1280

Chassis: Magnesium ThinkPad with soft-touch finish

Lenovo ThinkPad X12 Detachable Gen 1
Lenovo ThinkPad X12 Detachable Gen 1

If the Lenovo ThinkPad X12 Detachable would sit right next to a ThinkPad X1 Tablet Gen 3, the X12 would seem like the little brother. The design has not really changed. The ThinkPad X12 Detachable Gen 1 is clad in ThinkPad black with two metallic hinges for the kickstand in the back. Lenovo embraces a classic ThinkPad look with the X12 Gen 1.

The outward design is not the only aspect that has not changed, the materials used are also the same. The tablet part is made out of a magnesium-aluminum alloy, which is completely coated with a soft-touch finish (called "peach skin" by Lenovo). The screen is protected by Gorilla Glass 5, while the keyboard cover is also soft-touch coated. The X12 Tablet is absolutely stable and not bendable, pressure on the back does not carry through to the LCD panel. Strong pressure on the screen panel itself does, though Gorilla Glass 5 does protect it from pressure well enough in everyday use. 

While it does not offer the same stability as the base of a full-size ThinkPad laptop, the keyboard cover is stiff enough to keep the keyboard from flexing while typing normally. Using the X12 as a laptop (meaning on your lap) is difficult nonetheless, this is where traditional clamshells triumph. The kickstand can be opened by around 170 degrees, providing the ThinkPad X12 Detachable with maximum flexibility.

The weight we put in our spec table is the Lenovo ThinkPad X12 Gen 1 with the keyboard cover - this is the case, because the ThinkPad always comes with the keyboard, unlike say the Microsoft Surface Pro 7 Plus. The same thing is true for chassis thickness. Without the keyboard cover, the ThinkPad tablet weighs 760 g, the tablet part has a thickness of 8.8 mm.

So far, the ThinkPad X12 Detachable is the most compact ThinkPad 2-in-1. That it is smaller than the ThinkPad X1 Tablet Gen 3 with its bigger 13 inch screen is no miracle - but the X12 is also more compact than the X1 Tablet Gen 2, which contained a smaller 12 inch display.

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Size & weight comparison

304 mm / 12 inch 225.6 mm / 8.88 inch 8.9 mm / 0.3504 inch 1.3 kg2.82 lbs293 mm / 11.5 inch 210 mm / 8.27 inch 9 mm / 0.3543 inch 1.1 kg2.38 lbs292 mm / 11.5 inch 208.8 mm / 8.22 inch 9.35 mm / 0.3681 inch 850 g1.874 lbs292 mm / 11.5 inch 201 mm / 7.91 inch 8.5 mm / 0.3346 inch 796 g1.755 lbs283.3 mm / 11.2 inch 203.5 mm / 8.01 inch 14.5 mm / 0.571 inch 1.1 kg2.44 lbs

Connectivity: Lenovo tablet has a limited port selection

Similar to the ThinkPad X1 Nano and the X1 Titanium Yoga, the Lenovo ThinkPad X12 Detachable only has two USB C ports. Different from these two however, only one of the ports supports Thunderbolt 4. That is an advantage compared with the Microsoft Surface Pro 7 Plus. On the other hand, the Surface has a USB A port. Compared with older X1 Tablets, the microSD slot has disappeared.

left: USB C 3.2 Gen 2, microSIM, Thunderbolt 4, 3.5mm audio
left: USB C 3.2 Gen 2, microSIM, Thunderbolt 4, 3.5mm audio
right: loudness-keys, Kensington lock
right: loudness-keys, Kensington lock

Communication

The Lenovo ThinkPad X12 Detachable contains the Intel Wireless AX201, a Wi Fi 6 module with integrated Bluetooth 5.1. In the benchmarks, this module performed well - as always.

Our sample includes a WWAN card, too. Different from the newest X1 series, the Lenovo ThinkPad X12 Gen 1 is not being offered with 5G. Instead, the 4G LTE module Fibocom L850-GL is used.

Networking
iperf3 Client (receive) TCP 1 m 4M x10
Lenovo ThinkPad X12 20UVS03G00
Intel Wi-Fi 6 AX201
1471 (1155min - 1602max) MBit/s ∼100%
Microsoft Surface Pro 7 Plus
Intel Wi-Fi 6 AX201
1354 (783min - 1513max) MBit/s ∼92% -8%
Average Intel Wi-Fi 6 AX201
  (289 - 1722, n=214)
1230 MBit/s ∼84% -16%
Dell Latitude 12 7210 2-in-1
Intel Wi-Fi 6 AX201
919 (714min - 1122max) MBit/s ∼62% -38%
Average of class Convertible
  (976 - 1498, n=83, last 2 years)
884 MBit/s ∼60% -40%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
Intel Dual Band Wireless-AC 8265
633 MBit/s ∼43% -57%
iperf3 Client (transmit) TCP 1 m 4M x10
Dell Latitude 12 7210 2-in-1
Intel Wi-Fi 6 AX201
1690 (1490min - 1764max) MBit/s ∼100% +23%
Microsoft Surface Pro 7 Plus
Intel Wi-Fi 6 AX201
1382 (984min - 1508max) MBit/s ∼82% +1%
Lenovo ThinkPad X12 20UVS03G00
Intel Wi-Fi 6 AX201
1371 (716min - 1466max) MBit/s ∼81%
Average Intel Wi-Fi 6 AX201
  (49.8 - 1775, n=214)
1139 MBit/s ∼67% -17%
Average of class Convertible
  (291 - 1690, n=81, last 2 years)
870 MBit/s ∼51% -37%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
Intel Dual Band Wireless-AC 8265
514 MBit/s ∼30% -63%
716801886971105611411226131113961481156615011523147911921564137913571297134213931593155315121524160215401555156015441537159315311366115515261569152614431324152815011523147911921564137913571297134213931593155315121524160215401555156015441537159315311366115515261569152614431324152871613991423139213441308140313691376133011451429139013721293124914361406142013001360146614191407140413971366141414351254Tooltip
; iperf3 Client (receive) TCP 1 m 4M x10; iperf 3.1.3: Ø1470 (1155-1602)
; iperf3 Client (transmit) TCP 1 m 4M x10; iperf 3.1.3: Ø1347 (716-1466)

Webcam

Despite having a higher five Megapixel resolution than the 720p webcams of most ThinkPads, the front facing camera is not good. The picture is grainy, dark and colors are distorted. The camera on the back of the tablet is much better, though it of course pales compared with smartphone cameras.

5 Megapixel front camera
5 Megapixel front camera
8 Megapixel rear camera
8 Megapixel rear camera
ColorChecker
12.5 ∆E
10.6 ∆E
15.5 ∆E
15 ∆E
16.9 ∆E
15.6 ∆E
10.5 ∆E
14.1 ∆E
12.7 ∆E
8.9 ∆E
13 ∆E
11 ∆E
10.1 ∆E
10.7 ∆E
11.3 ∆E
9.1 ∆E
13.9 ∆E
15.9 ∆E
2.3 ∆E
9.3 ∆E
10.6 ∆E
10.6 ∆E
9.1 ∆E
6.1 ∆E
ColorChecker Lenovo ThinkPad X12 20UVS03G00: 11.47 ∆E min: 2.33 - max: 16.93 ∆E

Security

Lenovo gives the ThinkPad laptop X12 plenty of security features. Among them are TPM, a Kensington lock slot, a Infrared camera and a fingerprint reader for Windows Hello as well as the mechanical webcam-shutter ThinkShutter - a new feature compared with the old X1 Tablet. Only the front camera has the shutter, the rear camera would need to be taped over in secure environments.

Accessories

The 65 W USB C charger is an obligatory part of the package. This is less true for the digitizer pen and the keyboard cover. Both are supplied with the Lenovo ThinkPad X12, a major difference to the Microsoft Surface Pro 7 Plus.

Maintenance

Lenovo ThinkPad X12 Detachable: SSD is modular
Lenovo ThinkPad X12 Detachable: SSD is modular

In principle, the Lenovo ThinkPad X12 Gen 1 is repairable. Lenovo has published a comprehensive manual, as they do for all ThinkPads. The RAM is soldered down however, just like the Wi-Fi module. At least, the SSD has a M.2 2242 format and upgradable in theory. It should also be possible to clean the fan and change the battery.

Reaching those parts is difficult though, as the screen has to be removed. Due to the difficulty, we did not open the Lenovo PC.

Warranty

The Lenovo ThinkPad X12 Detachable has a 36 month warranty here in Germany (for all parts except the battery). Normally, this is a bring in service. Our special Campus configuration however has On site service with Premier support.

Input devices: ThinkPad quality for keyboard & TrackPoint

Keyboard

The keyboard of the X12 Detachable reminds us a lot about the ThinkPad X1 Nano: 1.35 mm key travel, lower key-height and an overall smaller keyboard - this is in contrast to the bigger X1 Tablet Gen 3, which could contain a full-sized keyboard. In the case of the backlit keyboard of the X12 Detachable, some keys are smaller - which ones exactly may vary from keyboard layout to layout. 

In comparison to keyboards of bigger ThinkPads, the X12 may require some "getting used to", as the keys do feel very different. Lenovo has adjusted the typing experience, the keys are crisper than before. All in all, it is a high-quality keyboard. Bigger ThinkPads are better, but in a tablet, finding something more comfortable than the X12 Detachable is gonna be difficult.

Keyboard cover Lenovo ThinkPad X12 Detachable Gen 1
Keyboard cover Lenovo ThinkPad X12 Detachable Gen 1

Touchpad & TrackPoint

With a surface measuring 10 x 5.5 cm, the touchpad has an appropriate size, though other devices do offer more spacious trackpads. The X12's touchpad is made out of plastic and it has an integrated click-mechanism, which has a short travel and a dampened, quality feeling. Gestures are translated perfectly by the touchpad and the cursor movement is very precise. The plastic surface could feel nicer, but it is serviceable - neither too slippery nor too rough.

The TrackPoint with its three dedicated keys between touchpad and keyboard provides exactly the qualities we expect from a ThinkPad TrackPoint. The cursor can be controlled precisely and quickly by applying pressure to the red nub. Users can avoid moving their hands from the keyboard while typing - the biggest advantage of the TrackPoint.

Touchscreen & Pen

As a tablet, the Lenovo ThinkPad X12 Detachable has a multitouch screen, which can recognize 10 fingers at the same time. It worked flawlessly in our test.

The supplied digitizer pen (Wacom AES, 4,096 levels of pressure) roughly matches the size of a normal pen. Thus, holding it is comfortable. There is no pen silo; instead, Lenovo offers a little pen loop that is attached to the keyboard cover. The pen is very usable, even though the two keys at the side are pretty flat. It is powered by a single AAA battery, which is accessible from the rear end of the pen.

Lenovo ThinkPad X12 Detachable Gen 1: Digitizer pen test
Lenovo ThinkPad X12 Detachable Gen 1: Digitizer pen test

ThinkPad tablet: Great 3:2 display

Subpixel array Lenovo ThinkPad X12 Detachable Gen 1
Subpixel array Lenovo ThinkPad X12 Detachable Gen 1
LED backlight bleeding (shown enhanced here)
LED backlight bleeding (shown enhanced here)

Unusual for ThinkPad laptops, but normal for detachable tablets: There is only one screen option. It is a 3:2 panel with a diagonal of 12.3 inches. This screen size is used in a ThinkPad tablet for the first time ever. The X1 Tablet Gen 3 used a 13 inch LCD, while the X1 Tablet Gen 2 contained a 12 inch display. Another change is the new screen resolution of 1,920 x 1,280 - the X1 Tablets used higher res 2K and 3K screens, same goes for the Surface Pro 7 Plus.

Lenovo advertises a brightness value of 400 cd/m². The ThinkPad X12 screen can fulfill this promise. Peak brightness was measured at 419 cd/m², with an average of 406 cd/m². The panel is slightly darker than the screen of the X1 Tablet Gen 3 as well as the Microsoft Surface Pro 7 Plus display. At least it exhibits no PWM, different from the Surface.

395
cd/m²
403
cd/m²
403
cd/m²
396
cd/m²
419
cd/m²
403
cd/m²
405
cd/m²
418
cd/m²
414
cd/m²
Distribution of brightness
N123NCA-GS1
X-Rite i1Pro 2
Maximum: 419 cd/m² Average: 406.2 cd/m² Minimum: 4.6 cd/m²
Brightness Distribution: 94 %
Center on Battery: 420 cd/m²
Contrast: 1822:1 (Black: 0.23 cd/m²)
ΔE Color 1.1 | 0.59-29.43 Ø5.6, calibrated: 0.5
ΔE Greyscale 1.5 | 0.64-98 Ø5.8
99.2% sRGB (Argyll 3D) 62.8% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.06
Lenovo ThinkPad X12 20UVS03G00
N123NCA-GS1, a-Si IPS LED, 1920x1280, 12.30
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
LP130QP1-SPA1, IPS, 3000x2000, 13.00
Microsoft Surface Pro 7 Plus
LG Philips LP123WQ332684, IPS, 2736x1824, 12.30
Dell Latitude 12 7210 2-in-1
Sharp LQ123N1, IPS, 1920x1280, 12.30
Lenovo ThinkPad X1 Tablet Gen 2
LSN120QL01L01, IPS, 2160x1440, 12.00
Response Times
4%
14%
55%
46%
Response Time Grey 50% / Grey 80% *
63.2 (30, 33.2)
47.2 (21.2, 26)
25%
50.8 (25.2, 25.6)
20%
29 (4, 25)
54%
28.4 (15.2, 13.2)
55%
Response Time Black / White *
36 (18, 18)
42.4 (19.6, 22.8)
-18%
33.6 (18.8, 14.8)
7%
16 (4, 12)
56%
22.8 (13.6, 9.2)
37%
PWM Frequency
199.2 (57, 119)
1250 (30)
221.2 (49)
Screen
-65%
-30%
-41%
-111%
Brightness middle
419
474
13%
408
-3%
380
-9%
388.1
-7%
Brightness
406
418
3%
425
5%
378
-7%
344
-15%
Brightness Distribution
94
76
-19%
85
-10%
86
-9%
78
-17%
Black Level *
0.23
0.33
-43%
0.34
-48%
0.31
-35%
0.39
-70%
Contrast
1822
1436
-21%
1200
-34%
1226
-33%
995
-45%
Colorchecker DeltaE2000 *
1.1
3.2
-191%
1.5
-36%
2.28
-107%
4.6
-318%
Colorchecker DeltaE2000 max. *
2.2
6.1
-177%
2.5
-14%
3.93
-79%
9.1
-314%
Colorchecker DeltaE2000 calibrated *
0.5
0.9
-80%
1.4
-180%
0.97
-94%
Greyscale DeltaE2000 *
1.5
4.5
-200%
1.6
-7%
2.56
-71%
6.1
-307%
Gamma
2.06 107%
2.07 106%
2.05 107%
2.32 95%
2.07 106%
CCT
6524 100%
5881 111%
6432 101%
6130 106%
7104 91%
Color Space (Percent of AdobeRGB 1998)
62.8
64
2%
63.7
1%
63
0%
59
-6%
Color Space (Percent of sRGB)
99.2
99.4
0%
96.8
-2%
97
-2%
91
-8%
Total Average (Program / Settings)
-31% / -54%
-8% / -23%
7% / -26%
-33% / -85%

* ... smaller is better

colors
colors
grey scale
grey scale
saturation
saturation
colors (calibrated)
colors (calibrated)
grey scale (calibrated)
grey scale (calibrated)
saturation (calibrated)
saturation (calibrated)

The screen was pretty well calibrated ex factory already; we measured it with CalMan and the X-Rite i1 Pro 2 color-calibrator. The contrast ratio of 1822:1 is very nice, a result of the low black value and high brightness. Along with the near complete sRGB coverage of 100 %, the screen has a vibrant picture quality with correct colors. This display is well suited for simple photo-editing.

sRGB: 99.2 %
sRGB: 99.2 %
AdobeRGB: 62.8 %
AdobeRGB: 62.8 %
Outdoor (clear, in the shadow)
Outdoor (clear, in the shadow)

Screen surface is glossy, though Lenovo applies a reflection-reduction. Thanks to the comparably high brightness, the screen of the ThinkPad laptop is useable outdoors, though annoying reflections can not be avoided entirely.

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
36 ms ... rise ↗ and fall ↘ combined↗ 18 ms rise
↘ 18 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. » 91 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (24.2 ms).
       Response Time 50% Grey to 80% Grey
63.2 ms ... rise ↗ and fall ↘ combined↗ 30 ms rise
↘ 33.2 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 636 (maximum) ms. » 96 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (38.4 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 9644 (minimum: 5 - maximum: 151500) Hz was measured.

As this screen is an IPS panel, the viewing angle stability is excellent.

Performance: ThinkPad X12 with slower CPU than Surface Pro 7 Plus

Lenovo offers nearly the entire UP4 Tiger Lake portfolio in the ThinkPad X12 Detachable Gen 1. This includes the low end Intel Core i3-1110G4 with two cores, the i5 CPUs 1130G7 and 1140G7 as well as the i7-1160G7 and the i7-1180G7. The integrated Intel iGPU handles graphics, with the i7 CPUs having the most powerful versions. RAM is soldered in the Lenovo ThinkPad X12 Gen 1, with up to 16 GB LPDDR4X-4266 memory. A single M.2 2242 SSD is the storage-device.

CPU-Z
CPU-Z
CPU-Z Caches
CPU-Z Caches
CPU-Z Mainboard
CPU-Z Mainboard
HWiNFO
HWiNFO
GPU-Z
GPU-Z
 

Processor

The Intel Core i7-1160G7 is a Tiger Lake processor of the UP4 series. It has a TDP of 9 to 15 W. The four 10 nm cores have clock-rates of 2.1 to 4.4 GHz. For comparisons with other processors, we have a dedicated CPU comparison list.

In the Lenovo ThinkPad X12 Detachable, the processor is able to consume up to 40 W when under multicore load. Long term, this power consumption is not sustainable. To keep chassis temperatures at bay, the CPU clocks down, with a sustainable power consumption of 12 W at the end. The processor is beat by the old  X1 Tablet Gen 3 when it comes to sustained load performance, even though the boost performance is higher. The Microsoft Surface Pro 7 Plus with its i5-CPU is only slightly faster. 

We did not detect any throttling when running on battery power.

204.9249.9294.9339.9384.9429.9474.9519.9564.9609.9654.9699.9744.9789.9834.9863.97793.76742.74709.12678.96640.72603.26560.49491.33429.64431.5426.12429.89443.49437.81448.26443.1459.11451.56446.54457.66455.18447.88459.01445.54694.88681.86674.29663.87617.05666.2632.43626.12667.49614.77643.06629.06631.2639.93613.49670.47627.96626.39650.62608.18676.62636.67616.37645.29608.87664.48627.46609.46666.7628.09609.38672.11642.95593.62674.78637.91593.66674.88665.67613.95613.32646.54605.84676.3643.35589.9676.67635.38591.98675.36645.36607.4602.55575.31558.87565.43532.79586.22530.69560.93531.49553.19538.43521.07546.1520.72559.35557.51521.8557.47516.2605.02547.23501.29552.8527.93545.26531.86552.49523.25551.48541.61588.88534.16539.56579.07518.3559.6570.4502.89583560.81498.05561.03515.64533.36538.74553.21539.76532.56784.28770.03769.78598.58603.34599.86574.65500.17483.2481.37476.17479.62481.59479.24479.05477.57477478.66479.9479.56476.94476.49475.61478.6480.22477.71480.25477.36479.84478.66477.56477.3476.09478.3475.43476.33479.81478.63477.53478.83579.32575.57574.48578.93580.89579.9580.59578.92581.16538.05549.13549.76538.4566.21536.11537.03541.82549.38537.32542.05539.61539539.19541.51540.7535.88532.65538.52533.92535.52537.56535.86542.17535.77532.2536.84535.35535.52535.88543.79862.27800.56710.66688.56662.77722.74707.95683.4657.28624.57587.69602.32638.47660.27638.11606.81623.32653.99635.33610.86606.03637.09634.69602.74628.89240.58218.33216.19214.54212.44212.58208.14208.04208.82205.69208.62207.05205.57208.43208.87207.25208.85208.61206.28207.9207.72206.66207.69206.91206.81208.07207.05206.87208.93208.31205.87208.4208.09208.67208.91208.6210.78204.92206.38208.04Tooltip
Lenovo ThinkPad X12 20UVS03G00 Intel Core i7-1160G7: Ø528 (426.12-863.97)
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE Intel Core i5-8250U; Undervolting: Ø640 (589.9-694.88)
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE Intel Core i5-8250U: Ø550 (498.05-645.36)
Microsoft Surface Pro 7 Plus Intel Core i5-1135G7: Ø513 (475.43-784.28)
Dell Latitude 12 7210 2-in-1 Intel Core i7-10610U: Ø549 (532.2-581.16)
Lenovo ThinkPad X1 Nano-20UN002UGE Intel Core i7-1160G7: Ø659 (587.69-862.27)
Lenovo ThinkPad X1 Tablet Gen 2 Intel Core i5-7Y54: Ø209 (204.92-240.58)
Cinebench R20: CPU (Single Core) | CPU (Multi Core)
Cinebench R15: CPU Single 64Bit | CPU Multi 64Bit
Blender 2.79: BMW27 CPU
7-Zip 18.03: 7z b 4 -mmt1 | 7z b 4
Geekbench 5.3: 64 Bit Single-Core Score | 64 Bit Multi-Core Score
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
Cinebench R20 / CPU (Single Core)
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
544 Points ∼100% +9%
Average Intel Core i7-1160G7
  (484 - 544, n=3)
510 Points ∼94% +2%
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
501 Points ∼92% 0%
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
501 Points ∼92%
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
452 Points ∼83% -10%
Average of class Convertible
  (106 - 604, n=74, last 2 years)
423 Points ∼78% -16%
Cinebench R20 / CPU (Multi Core)
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
2068 Points ∼100%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
1750 Points ∼85% -15%
Average Intel Core i7-1160G7
  (1224 - 2068, n=3)
1681 Points ∼81% -19%
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
1573 Points ∼76% -24%
Average of class Convertible
  (200 - 4953, n=74, last 2 years)
1553 Points ∼75% -25%
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
1510 Points ∼73% -27%
Cinebench R15 / CPU Single 64Bit
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
208 Points ∼100% +22%
Average Intel Core i7-1160G7
  (170 - 208, n=3)
191 Points ∼92% +12%
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
188 Points ∼90% +11%
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
170 Points ∼82%
Average of class Convertible
  (47.6 - 243, n=83, last 2 years)
166 Points ∼80% -2%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
Intel Core i5-8250U
141 Points ∼68% -17%
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
133 Points ∼64% -22%
Lenovo ThinkPad X1 Tablet Gen 2
Intel Core i5-7Y54
115 Points ∼55% -32%
Cinebench R15 / CPU Multi 64Bit
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
864 (426.12min - 863.97max) Points ∼100%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
862.27 Points ∼100% 0%
Average Intel Core i7-1160G7
  (753 - 864, n=3)
826 Points ∼96% -4%
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
784 Points ∼91% -9%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
Intel Core i5-8250U
695 Points ∼80% -20%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
Intel Core i5-8250U
661 Points ∼77% -23%
Average of class Convertible
  (90 - 2083, n=88, last 2 years)
674 Points ∼78% -22%
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
579 Points ∼67% -33%
Lenovo ThinkPad X1 Tablet Gen 2
Intel Core i5-7Y54
234 Points ∼27% -73%
Blender 2.79 / BMW27 CPU
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
1115 Seconds * ∼100%
Average of class Convertible
  (246 - 5811, n=63, last 2 years)
1020 Seconds * ∼91% +9%
Average Intel Core i7-1160G7
  (625 - 1115, n=3)
880 Seconds * ∼79% +21%
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
798 Seconds * ∼72% +28%
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
735 Seconds * ∼66% +34%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
625 Seconds * ∼56% +44%
7-Zip 18.03 / 7z b 4 -mmt1
Average Intel Core i7-1160G7
  (4596 - 4621, n=2)
4609 MIPS ∼100%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
4596 MIPS ∼100%
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
4313 MIPS ∼94%
Average of class Convertible
  (1307 - 5623, n=64, last 2 years)
4215 MIPS ∼91%
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
4136 MIPS ∼90%
7-Zip 18.03 / 7z b 4
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
22950 MIPS ∼100% +32%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
22305 MIPS ∼97% +29%
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
20211 MIPS ∼88% +17%
Average of class Convertible
  (3541 - 57319, n=66, last 2 years)
18934 MIPS ∼83% +9%
Average Intel Core i7-1160G7
  (15740 - 22305, n=3)
18462 MIPS ∼80% +6%
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
17340 MIPS ∼76%
Geekbench 5.3 / 64 Bit Single-Core Score
Average Intel Core i7-1160G7
  (1406 - 1465, n=3)
1427 Points ∼100% +1%
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
1409 Points ∼99%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
1406 Points ∼99% 0%
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
1334 Points ∼93% -5%
Average of class Convertible
  (263 - 1566, n=58, last 2 years)
1185 Points ∼83% -16%
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
1155 Points ∼81% -18%
Geekbench 5.3 / 64 Bit Multi-Core Score
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
4866 Points ∼100% 0%
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
4843 Points ∼100%
Average Intel Core i7-1160G7
  (4660 - 4991, n=3)
4831 Points ∼99% 0%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
4660 Points ∼96% -4%
Average of class Convertible
  (858 - 8620, n=58, last 2 years)
4246 Points ∼87% -12%
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
4224 Points ∼87% -13%
HWBOT x265 Benchmark v2.2 / 4k Preset
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
6.09 fps ∼100% +62%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
6.06 fps ∼100% +62%
Average of class Convertible
  (0.7 - 15.2, n=63, last 2 years)
4.98 fps ∼82% +33%
Average Intel Core i7-1160G7
  (3.75 - 6.06, n=3)
4.68 fps ∼77% +25%
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
4.57 fps ∼75% +22%
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
3.75 fps ∼62%
LibreOffice / 20 Documents To PDF
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
67 s * ∼100% -9%
Average of class Convertible
  (40.7 - 172, n=48, last 2 years)
66.1 s * ∼99% -8%
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
61.3 s * ∼91%
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
57.2 s * ∼85% +7%
Average Intel Core i7-1160G7
  (49.8 - 61.3, n=3)
54.6 s * ∼81% +11%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
52.7 s * ∼79% +14%
R Benchmark 2.5 / Overall mean
Dell Latitude 12 7210 2-in-1
Intel Core i7-10610U
0.781 sec * ∼100% -3%
Lenovo ThinkPad X12 20UVS03G00
Intel Core i7-1160G7
0.76 sec * ∼97%
Average of class Convertible
  (0.504 - 1.759, n=49, last 2 years)
0.738 sec * ∼94% +3%
Average Intel Core i7-1160G7
  (0.64 - 0.76, n=3)
0.682 sec * ∼87% +10%
Microsoft Surface Pro 7 Plus
Intel Core i5-1135G7
0.68 sec * ∼87% +11%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Core i7-1160G7
0.64 sec * ∼82% +16%

* ... smaller is better

Cinebench R15 CPU Multi 64Bit
864 Points
Cinebench R15 OpenGL 64Bit
77 fps
Cinebench R15 Ref. Match 64Bit
97.8 %
Cinebench R15 CPU Single 64Bit
170 Points
Help

System performance

Everyday performance is great, the Lenovo X12 works snappy. In the PCMark 10, it performed better than the Surface Pro 7 Plus.

PCMark 10
Digital Content Creation
Lenovo ThinkPad X1 Nano-20UN002UGE
Iris Xe G7 96EUs, i7-1160G7, WDC PC SN530 SDBPNPZ-512G
4530 Points ∼100% 0%
Lenovo ThinkPad X12 20UVS03G00
Iris Xe G7 96EUs, i7-1160G7, Toshiba BG4 KBG40ZNT512G
4525 Points ∼100%
Average Intel Core i7-1160G7, Intel Iris Xe Graphics G7 96EUs
  (3744 - 4530, n=3)
4266 Points ∼94% -6%
Microsoft Surface Pro 7 Plus
Iris Xe G7 80EUs, i5-1135G7, Samsung PM991 MZ9LQ256HBJQ
3921 Points ∼87% -13%
Average of class Convertible
  (681 - 6844, n=78, last 2 years)
3490 Points ∼77% -23%
Dell Latitude 12 7210 2-in-1
UHD Graphics 620, i7-10610U, WDC PC SN530 SDBPTPZ-512G
3313 Points ∼73% -27%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
UHD Graphics 620, i5-8250U, Samsung PM961 MZVLW256HEHP
2939 Points ∼65% -35%
Productivity
Dell Latitude 12 7210 2-in-1
UHD Graphics 620, i7-10610U, WDC PC SN530 SDBPTPZ-512G
6710 Points ∼100% +9%
Average Intel Core i7-1160G7, Intel Iris Xe Graphics G7 96EUs
  (6155 - 6602, n=3)
6322 Points ∼94% +3%
Average of class Convertible
  (1881 - 8653, n=78, last 2 years)
6267 Points ∼93% +2%
Lenovo ThinkPad X1 Nano-20UN002UGE
Iris Xe G7 96EUs, i7-1160G7, WDC PC SN530 SDBPNPZ-512G
6210 Points ∼93% +1%
Lenovo ThinkPad X12 20UVS03G00
Iris Xe G7 96EUs, i7-1160G7, Toshiba BG4 KBG40ZNT512G
6155 Points ∼92%
Microsoft Surface Pro 7 Plus
Iris Xe G7 80EUs, i5-1135G7, Samsung PM991 MZ9LQ256HBJQ
5544 Points ∼83% -10%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
UHD Graphics 620, i5-8250U, Samsung PM961 MZVLW256HEHP
5509 Points ∼82% -10%
Essentials
Average Intel Core i7-1160G7, Intel Iris Xe Graphics G7 96EUs
  (9482 - 10372, n=3)
9863 Points ∼100% +1%
Lenovo ThinkPad X12 20UVS03G00
Iris Xe G7 96EUs, i7-1160G7, Toshiba BG4 KBG40ZNT512G
9734 Points ∼99%
Lenovo ThinkPad X1 Nano-20UN002UGE
Iris Xe G7 96EUs, i7-1160G7, WDC PC SN530 SDBPNPZ-512G
9482 Points ∼96% -3%
Dell Latitude 12 7210 2-in-1
UHD Graphics 620, i7-10610U, WDC PC SN530 SDBPTPZ-512G
8541 Points ∼87% -12%
Average of class Convertible
  (3258 - 11505, n=78, last 2 years)
8538 Points ∼87% -12%
Microsoft Surface Pro 7 Plus
Iris Xe G7 80EUs, i5-1135G7, Samsung PM991 MZ9LQ256HBJQ
8149 Points ∼83% -16%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
UHD Graphics 620, i5-8250U, Samsung PM961 MZVLW256HEHP
7460 Points ∼76% -23%
Score
Lenovo ThinkPad X12 20UVS03G00
Iris Xe G7 96EUs, i7-1160G7, Toshiba BG4 KBG40ZNT512G
4640 Points ∼100%
Lenovo ThinkPad X1 Nano-20UN002UGE
Iris Xe G7 96EUs, i7-1160G7, WDC PC SN530 SDBPNPZ-512G
4615 Points ∼99% -1%
Average Intel Core i7-1160G7, Intel Iris Xe Graphics G7 96EUs
  (4554 - 4640, n=3)
4603 Points ∼99% -1%
Dell Latitude 12 7210 2-in-1
UHD Graphics 620, i7-10610U, WDC PC SN530 SDBPTPZ-512G
4120 Points ∼89% -11%
Average of class Convertible
  (1154 - 5971, n=78, last 2 years)
4071 Points ∼88% -12%
Microsoft Surface Pro 7 Plus
Iris Xe G7 80EUs, i5-1135G7, Samsung PM991 MZ9LQ256HBJQ
4026 Points ∼87% -13%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
UHD Graphics 620, i5-8250U, Samsung PM961 MZVLW256HEHP
3544 Points ∼76% -24%
PCMark 10 Score
4640 points
Help

DPC latency

LatencyMon
LatencyMon
LatencyMon Drivers
LatencyMon Drivers
DPC Latencies / LatencyMon - interrupt to process latency (max), Web, Youtube, Prime95
Lenovo ThinkPad X12 20UVS03G00
Iris Xe G7 96EUs, i7-1160G7, Toshiba BG4 KBG40ZNT512G
464.6 μs * ∼100%
Microsoft Surface Pro 7 Plus
Iris Xe G7 80EUs, i5-1135G7, Samsung PM991 MZ9LQ256HBJQ
313.5 μs * ∼67% +33%

* ... smaller is better

Storage

Storage is handled by an NVMe PCIe 3.0 SSD made by Toshiba, which has a capacity of 512 GB in our review unit. The small M.2 2242 SSD is rather slow in our benchmarks. This will not be apparent in everyday use, but it may impact speed when copying large data files.

Lenovo ThinkPad X12 20UVS03G00
Toshiba BG4 KBG40ZNT512G
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
Samsung PM961 MZVLW256HEHP
Microsoft Surface Pro 7 Plus
Samsung PM991 MZ9LQ256HBJQ
Dell Latitude 12 7210 2-in-1
WDC PC SN530 SDBPTPZ-512G
Lenovo ThinkPad X1 Nano-20UN002UGE
WDC PC SN530 SDBPNPZ-512G
Average Toshiba BG4 KBG40ZNT512G
 
CrystalDiskMark 5.2 / 6
63%
63%
84%
144%
61%
Write 4K
72.82
95.43
31%
165.3
127%
182.7
151%
269.37
270%
134 (72.8 - 227, n=3)
84%
Read 4K
26.35
39.19
49%
42.95
63%
51.42
95%
54.11
105%
40.4 (26.4 - 62.9, n=3)
53%
Write Seq
823
954.7
16%
1303
58%
1739.42
111%
1212 (823 - 1518, n=3)
47%
Read Seq
1169
867.3
-26%
1450
24%
1670.99
43%
1372 (1169 - 1501, n=3)
17%
Write 4K Q32T1
112.6
399.24
255%
423.5
276%
342.9
205%
580.2
415%
338 (113 - 545, n=3)
200%
Read 4K Q32T1
327.2
260.67
-20%
479.2
46%
523.3
60%
707.96
116%
491 (327 - 687, n=3)
50%
Write Seq Q32T1
1039
1286.9
24%
1060
2%
1776
71%
1811.8
74%
1343 (1039 - 1507, n=3)
29%
Read Seq Q32T1
2176
3024.8
39%
2251
3%
2378
9%
2485.4
14%
2279 (2176 - 2334, n=3)
5%
Toshiba BG4 KBG40ZNT512G
CDM 5/6 Read Seq Q32T1: 2176 MB/s
CDM 5/6 Write Seq Q32T1: 1039 MB/s
CDM 5/6 Read 4K Q32T1: 327.2 MB/s
CDM 5/6 Write 4K Q32T1: 112.6 MB/s
CDM 5 Read Seq: 1169 MB/s
CDM 5 Write Seq: 823 MB/s
CDM 5/6 Read 4K: 26.35 MB/s
CDM 5/6 Write 4K: 72.82 MB/s

Sustained load read: DiskSpd Read Loop, Queue Depth 8

1728.11823.11728.051824.231825.281837.211838.041838.461838.671838.881838.881838.881840.141840.141840.141840.971840.971841.811844.741845.161845.791846.211847.251847.461847.671847.671847.671847.881848.511848.511848.931849.551850.181850.181850.181850.811851.651853.321858.341858.341859.811859.811859.811860.861861.071861.271862.111862.111862.111863.791869.651888.69Tooltip
: Ø1847 (1728.05-1888.69)

GPU

The Intel Xe Graphics G7 with 96 EUs is basically the same iGPU as in the Intel Core i7-1165G7, though it is lower clocked in the UP4 chip i7-1160G7. The GPU performance in the 3DMark tests is worse compared with the Microsoft Surface Pro 7 Plus - despite the perfect memory configuration of the X12 Tablet (quad channel & LPDDR4X-4266) and the fact that the Surface only uses the Xe Graphics with 80 EUs. The difference is most pronounced in the FireStrike test. The Microsoft tablet is roughly 40 % better here. In TimeSpy, the difference is just 5 %.

For games, the Lenovo ThinkPad X12 Detachable is not a good solution. Modern titles can only be played in reduced details and resolution.

With the charger connected, the GPU of the Lenovo laptops is roughly 12 % faster in the 3DMark 11 graphics test.

3DMark 11 - 1280x720 Performance GPU
Average Intel Iris Xe Graphics G7 96EUs
  (5018 - 7090, n=34)
6393 Points ∼100% +25%
Microsoft Surface Pro 7 Plus
Intel Iris Xe Graphics G7 80EUs, Intel Core i5-1135G7
5926 Points ∼93% +16%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Iris Xe Graphics G7 96EUs, Intel Core i7-1160G7
5465 Points ∼85% +7%
Lenovo ThinkPad X12 20UVS03G00
Intel Iris Xe Graphics G7 96EUs, Intel Core i7-1160G7
5128 Points ∼80%
Average of class Convertible
  (429 - 17421, n=81, last 2 years)
3840 Points ∼60% -25%
Dell Latitude 12 7210 2-in-1
Intel UHD Graphics 620, Intel Core i7-10610U
1988 Points ∼31% -61%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
Intel UHD Graphics 620, Intel Core i5-8250U
1812 Points ∼28% -65%
3DMark
2560x1440 Time Spy Graphics
Average Intel Iris Xe Graphics G7 96EUs
  (1032 - 1670, n=39)
1431 Points ∼100% +8%
Microsoft Surface Pro 7 Plus
Intel Iris Xe Graphics G7 80EUs, Intel Core i5-1135G7
1376 Points ∼96% +4%
Lenovo ThinkPad X12 20UVS03G00
Intel Iris Xe Graphics G7 96EUs, Intel Core i7-1160G7
1319 Points ∼92%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Iris Xe Graphics G7 96EUs, Intel Core i7-1160G7
1260 Points ∼88% -4%
Average of class Convertible
  (91 - 5126, n=58, last 2 years)
912 Points ∼64% -31%
Dell Latitude 12 7210 2-in-1
Intel UHD Graphics 620, Intel Core i7-10610U
441 Points ∼31% -67%
1920x1080 Fire Strike Graphics
Average Intel Iris Xe Graphics G7 96EUs
  (3229 - 5848, n=38)
4915 Points ∼100% +46%
Microsoft Surface Pro 7 Plus
Intel Iris Xe Graphics G7 80EUs, Intel Core i5-1135G7
4652 Points ∼95% +39%
Lenovo ThinkPad X1 Nano-20UN002UGE
Intel Iris Xe Graphics G7 96EUs, Intel Core i7-1160G7
4192 Points ∼85% +25%
Lenovo ThinkPad X12 20UVS03G00
Intel Iris Xe Graphics G7 96EUs, Intel Core i7-1160G7
3355 Points ∼68%
Average of class Convertible
  (311 - 13158, n=78, last 2 years)
2737 Points ∼56% -18%
Dell Latitude 12 7210 2-in-1
Intel UHD Graphics 620, Intel Core i7-10610U
1379 Points ∼28% -59%
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
Intel UHD Graphics 620, Intel Core i5-8250U
1189 Points ∼24% -65%
3DMark 11 Performance
5027 points
3DMark Fire Strike Score
2908 points
3DMark Time Spy Score
1422 points
Help
low med. high ultra
The Witcher 3 (2015) 83.1 51.6 24.8 fps
Dota 2 Reborn (2015) 71 59.6 34.3 31 fps
X-Plane 11.11 (2018) 29.2 23.5 20.7 fps
Shadow of the Tomb Raider (2018) 45.3 14.8 fps
F1 2020 (2020) 65.9 23.1 fps

Emissions: Lenovo laptop is not fanless

Noise

The maximum noise level while idling sits at 26 dB(a) - absolutely quiet. Under load, the small fan reaches 37 dB(a). This is audible, but not disturbingly so. The fan noise is a high-frequency one. Delicate ears might be annoyed by it.

We did not hear any electronic noise from the ThinkPad X12 Detachable Gen 1.

Noise Level

Idle
25.1 / 25.1 / 26 dB(A)
Load
34.6 / 37 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: 25.1 dB(A)
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2035.733.436.534.434.630.82525.323.625.424.724.326.33129.930.731.73229.332.34027.728.429.329.328.828.75026.624.72824.831.328.56320.422.62520.923.425.68020.320.42025.72223.510027.726.826.125.22623.212531.221.925.722.524.530.916026.931.726.224.826.223.520028.123.823.123.42321.72503021.321.12121.521.531520.718.21817.71817.840017.41516.413.815.316.750022.618.926.31413.625.963016.629.228.91412.419.680016.322.118.412.411.317.7100020.326.222.713.91220.8125022.828.125.615.511.323.4160019.226.723.112.910.621.3200020.827.424.914.310.722.6250019.627.12313.211.120.9315016.823.62012.211.418.3400015.121.918.112.41216.3500015.521.518.212.31216.1630014.319.61712.312.415.8800013.617.815.312.312.514.51000012.91814.912.312.6141250012.618.414.512.112.714160001217.113.411.511.613.2SPL31.43734.62625.132.2N1.62.520.80.71.6median 19.2median 21.9median 21.1median 13.8median 12.4median 19.6Delta4.54.142.73.43.3hearing rangehide median Fan NoiseLenovo ThinkPad X12 20UVS03G00

Temperatures

stress test (Prime95 + FurMark)
stress test (Prime95 + FurMark)

A low chassis temperature is important for a tablet. After all, using it as a tablet means holding it in the hands. In this regard, Lenovo has done well with the X12 Detachable, as the ThinkPad tablet only reaches 41.7 degrees Celsius (107 F) - not particular hot.

In the stress test with sustained GPU and CPU load, the CPU can only consume 10 W after one hour. This results in clock rates of 800 MHz. In the 3DMark 11 after the stress test, the CPU performed normally, while the GPU performance was 20 % lower than normally.

Max. Load
 37.8 °C
100 F
39 °C
102 F
38.6 °C
101 F
 
 35.8 °C
96 F
36.1 °C
97 F
34.4 °C
94 F
 
 29.4 °C
85 F
31.5 °C
89 F
31.9 °C
89 F
 
Maximum: 39 °C = 102 F
Average: 34.9 °C = 95 F
41.7 °C
107 F
41.3 °C
106 F
39.8 °C
104 F
39.8 °C
104 F
39.3 °C
103 F
37.8 °C
100 F
31.9 °C
89 F
31.3 °C
88 F
30.8 °C
87 F
Maximum: 41.7 °C = 107 F
Average: 37.1 °C = 99 F
Power Supply (max.)  31.1 °C = 88 F | Room Temperature 21.3 °C = 70 F | Voltcraft IR-900
(±) The average temperature for the upper side under maximal load is 34.9 °C / 95 F, compared to the average of 30.3 °C / 87 F for the devices in the class Convertible.
(+) The maximum temperature on the upper side is 39 °C / 102 F, compared to the average of 35.3 °C / 96 F, ranging from 21.8 to 55.7 °C for the class Convertible.
(±) The bottom heats up to a maximum of 41.7 °C / 107 F, compared to the average of 36.6 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 25.1 °C / 77 F, compared to the device average of 30.3 °C / 87 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 31.9 °C / 89.4 F and are therefore cool to the touch.
(-) The average temperature of the palmrest area of similar devices was 28.6 °C / 83.5 F (-3.3 °C / -5.9 F).
stress test (front)
stress test (front)
stress test (back)
stress test (back)
stress test (back)
stress test (back)
stress test (all around)
stress test (all around)

Speakers

The speakers of the Lenovo X12 are hidden beneath the screen bezel. Their quality is average, they lack loudness and bass. At least they are better than the speakers of the ThinkPad X1 Tablet Gen 3, but they are far away from the quad speaker system of the X1 Nano.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2034.634.52524.3283129.332.24028.828.85031.331.76323.425.7802225.41002627.612524.531.516026.226.82002334.825021.540.73151846.340015.351.550013.658.663012.46280011.362.910001266.4125011.367.5160010.666.8200010.764.8250011.162.6315011.461.940001261.150001257.1630012.460.2800012.556.61000012.651.41250012.749.31600011.652SPL25.175.1N0.733median 12.4median 57.1Delta3.4926.22924.324.930.135.126.932.82827.420.830.119.335.926.443.419.847.421.654.519.561.519.264.416.768.618.37016.172.212.977.512.778.611.972.111.169.610.578.411.176.311.275.611.673.611.771.21272.912.371.512.371.612.365.312.360.111.655.824.986.40.771median 12.3median 71.23.35.933.933.129.431.833.731.832.529.627.929.228.325.526.425.825.626.525.62523.729.822.935.122.440.420.744.119.450.219.154.318.356.518.660.318.16117.659.516.661.416.464.416.664.316.865.217.361.917.35917.563.217.855.217.937.717.834.61832.829.873.61.330.4median 18median 55.21.711.9hearing rangehide median Pink NoiseLenovo ThinkPad X12 20UVS03G00Lenovo ThinkPad X1 Nano-20UN002UGELenovo ThinkPad X1 Tablet G3-20KJ001NGE
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Lenovo ThinkPad X12 20UVS03G00 audio analysis

(±) | speaker loudness is average but good (75.1 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 22.5% lower than median
(±) | linearity of bass is average (11.3% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 6.8% higher than median
(+) | mids are linear (6.6% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.4% away from median
(+) | highs are linear (6.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (22% difference to median)
Compared to same class
» 61% of all tested devices in this class were better, 7% similar, 32% worse
» The best had a delta of 9%, average was 21%, worst was 53%
Compared to all devices tested
» 59% of all tested devices were better, 8% similar, 34% worse
» The best had a delta of 3%, average was 21%, worst was 65%

Lenovo ThinkPad X1 Nano-20UN002UGE audio analysis

(+) | speakers can play relatively loud (86.4 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 14.6% lower than median
(±) | linearity of bass is average (9.3% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.8% away from median
(+) | mids are linear (6.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.2% away from median
(+) | highs are linear (3.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (11.8% difference to median)
Compared to same class
» 10% of all tested devices in this class were better, 4% similar, 86% worse
» The best had a delta of 7%, average was 19%, worst was 50%
Compared to all devices tested
» 6% of all tested devices were better, 2% similar, 92% worse
» The best had a delta of 3%, average was 21%, worst was 65%

Lenovo ThinkPad X1 Tablet G3-20KJ001NGE audio analysis

(±) | speaker loudness is average but good (73.6 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 21.7% lower than median
(±) | linearity of bass is average (9.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.7% away from median
(±) | linearity of mids is average (7.8% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 7.8% higher than median
(±) | linearity of highs is average (14.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(-) | overall sound is not linear (31.1% difference to median)
Compared to same class
» 89% of all tested devices in this class were better, 2% similar, 9% worse
» The best had a delta of 9%, average was 21%, worst was 53%
Compared to all devices tested
» 92% of all tested devices were better, 3% similar, 5% worse
» The best had a delta of 3%, average was 21%, worst was 65%

Energy management: Better battery life than old ThinkPad X1 Tablet

Power consumption

Energy consumption while idling is lower than it was for the Microsoft Surface Pro 7 Plus and the X1 Tablet 2018, only the Dell Latitude 7210 2-in-1 performed better in this regard.

The maximum power consumption of 59 W is no challenge for the 65 W charger.

Power Consumption
Off / Standbydarklight 0.28 / 0.48 Watt
Idledarkmidlight 4 / 5.9 / 8.3 Watt
Load midlight 30.1 / 59 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Currently we use the Metrahit Energy, a professional single phase power quality and energy measurement digital multimeter, for our measurements. Find out more about it here. All of our test methods can be found here.
Lenovo ThinkPad X12 20UVS03G00
i7-1160G7, Iris Xe G7 96EUs, Toshiba BG4 KBG40ZNT512G, a-Si IPS LED, 1920x1280, 12.30
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
i5-8250U, UHD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 3000x2000, 13.00
Microsoft Surface Pro 7 Plus
i5-1135G7, Iris Xe G7 80EUs, Samsung PM991 MZ9LQ256HBJQ, IPS, 2736x1824, 12.30
Dell Latitude 12 7210 2-in-1
i7-10610U, UHD Graphics 620, WDC PC SN530 SDBPTPZ-512G, IPS, 1920x1280, 12.30
Average Intel Iris Xe Graphics G7 96EUs
 
Average of class Convertible
 
Power Consumption
-28%
-32%
12%
-17%
-4%
Idle Minimum *
4
4.8
-20%
5.5
-38%
3.2
20%
4.37 (2.5 - 9.5, n=32)
-9%
3.81 (1.4 - 9.4, n=85, last 2 years)
5%
Idle Average *
5.9
9
-53%
9.1
-54%
5.3
10%
7.8 (4.9 - 16.4, n=32)
-32%
6.72 (2.8 - 13.3, n=85, last 2 years)
-14%
Idle Maximum *
8.3
10.5
-27%
10.8
-30%
8.4
-1%
9.51 (5.9 - 16.9, n=32)
-15%
8.48 (3.7 - 13.9, n=85, last 2 years)
-2%
Load Average *
30.1
42.8
-42%
39.2
-30%
27
10%
38.9 (26.2 - 54.3, n=32)
-29%
35.7 (5.5 - 78, n=85, last 2 years)
-19%
Witcher 3 ultra *
30.8
Load Maximum *
59
57.8
2%
62.5
-6%
46.9
21%
59.1 (34 - 80.5, n=32)
-0%
52.2 (8.3 - 118, n=85, last 2 years)
12%

* ... smaller is better

Battery life

charging time: 132 minutes
charging time: 132 minutes

Despite the fact that the Lenovo ThinkPad X12 Detachable is considerably smaller than the old X1 Tablet Gen 3, the internal Li-Po battery has the same 42 Wh capacity. With more than eight hours in the Wi-Fi test, the Lenovo X12 gets a good result - the Surface Pro 7 Plus is not better, despite its bigger battery.

Battery Runtime
NBC WiFi Websurfing Battery Test 1.3 (Edge Chromium)
8h 12min
NBC WiFi Websurfing Battery Test 1.3 max Brightness (Edge Chromium)
6h 47min
Big Buck Bunny H.264 1080p
9h 57min
Load (maximum brightness)
1h 59min
Lenovo ThinkPad X12 20UVS03G00
i7-1160G7, Iris Xe G7 96EUs, 42 Wh
Lenovo ThinkPad X1 Tablet G3-20KJ001NGE
i5-8250U, UHD Graphics 620, 42 Wh
Microsoft Surface Pro 7 Plus
i5-1135G7, Iris Xe G7 80EUs, 48.9 Wh
Dell Latitude 12 7210 2-in-1
i7-10610U, UHD Graphics 620, 38 Wh
Average of class Convertible
 
Battery Runtime
-21%
34%
2%
6%
H.264
597
523
-12%
650
9%
676
13%
579 (269 - 924, n=35, last 2 years)
-3%
WiFi v1.3
492
395
-20%
483
-2%
489
-1%
559 (248 - 1141, n=85, last 2 years)
14%
Load
119
83
-30%
232
95%
111
-7%
129 (62 - 334, n=59, last 2 years)
8%

Pros

+ compact & robust Magnesium chassis
+ great ThinkPad keyboard cover with TrackPoint
+ Thunderbolt 4, LTE & Security features
+ very nice 3:2 LCD
+ temperatures stay low
+ accessories included in the box
+ 3 year warranty

Cons

- removable SSD is difficult to reach
- not fanless
- no microSD card reader
- CPU performance is not better than the X1 Tablet G3
- middling speakers & webcam

Verdict: Surface style ThinkPad delivers convincing results

in review: Lenovo ThinkPad X12 Detachable Gen 1, review sample provided by
in review: Lenovo ThinkPad X12 Detachable Gen 1, review sample provided by

A detachable like the Lenovo ThinkPad X12 always has to measure up compared with the most revent Microsoft Surface Pro. After all, Micorosft invented this form-factor. So far, Lenovo seemingly had not perfected its formular in this area, as the X1 Tablet series only lasted three generations. For two years, there has not been a ThinkPad in this segment. Is the ThinkPad X12 Detachable Gen 1 better than the X1 Tablet Gen 3 and X1 Tablet Gen 2?

In short: Yes! The first two X1 Tablets were too limited . The X1 Tablet Gen 3 meanwhile was too big, with a processor not made for a tablet - it ran hotter and had a shorter battery life. It also was comparably expensive. The ThinkPad X12 is a lot more affordable and with its Tiger Lake CPUs, the X12 also runs cooler, quieter and longer. The performance meanwhile is not quite on par with the X1 Tablet Gen 3, but almost.  There are no compromises in terms of the build quality or the input devices. A robust and lightweight Magnesium chassis meets a very good ThinkPad keyboard with TrackPoint. The keyboard cover is one of the best in the detachable scene, despite the lower key travel compared to bigger ThinkPads.

The keyboard is always supplied with the X12, just like the pen. That is an advantage compared to the Microsoft Surface Pro 7 Plus, as it comes without these accessories. Another advantage is Thunderbolt 4, a function that microsoft still does not offer in the year 2021. In other aspects of the connectivty, there is a tie - LTE for example is offered by both - though the Surface does have the advantage of an USB A port. The SSD of the ThinkPad X12 is also really hard to reach, an area that Microsoft has improved upon. The Surface is fanless as well - in contrast, the fan of the X12 is quite audible under load.

A good product: The Lenovo ThinkPad X12 Detachable is attractive for Surface defectors as well as for users of older X1 Tablets. 

Overall, we can recommend the Lenovo ThinkPad X12 Detachable as a very competitive Windows tablet laptop hybrid. For users looking for a productivity focused tablet, it is great package.

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Pricing and availability

The reviewed model is a special Campus configuration available from German campus retailers, like campuspoint. Other configurations can be bought over at Amazon, for example.

Lenovo ThinkPad X12 20UVS03G00 - 04/15/2021 v7
Benjamin Herzig

Chassis
85 / 98 → 86%
Keyboard
88%
Pointing Device
89%
Connectivity
60 / 75 → 81%
Weight
74 / 20-75 → 98%
Battery
82%
Display
91%
Games Performance
65 / 78 → 83%
Application Performance
81 / 85 → 95%
Temperature
92%
Noise
94%
Audio
64 / 91 → 70%
Camera
44 / 85 → 52%
Average
78%
89%
Convertible - Weighted Average

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Benjamin Herzig
Editor of the original article: Benjamin Herzig - Managing Editor - 895 articles published on Notebookcheck since 2016
I was an ardent reader of Notebookcheck’s laptop reviews even back in school. After writing reviews as a hobby, I then joined Notebookcheck in 2016 and have worked on device reviews and news articles ever since then. My personal interest lies more with laptops than smartphones, with business laptops being the most interesting category for me. Technology should make our lives and work easier and good laptops are an essential tool for that to happen. This is why laptop reviews are not just my work but are also my passion.
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> Notebook / Laptop Reviews and News > Reviews > Lenovo ThinkPad X12 Detachable Gen 1 Review: Laptop tablet hybrid with LTE & Tiger Lake UP4
Benjamin Herzig, 2021-04-17 (Update: 2021-04-17)