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MagyarCore i7-1265U vs. Core i5-1250P: Lenovo ThinkPad X1 Carbon Gen 10 laptop review
The ThinkPad X1 Carbon G10 is the latest ultralight business laptop from Lenovo sporting 12th gen Intel Core-U and Core-P CPUs. Options range from the Core i5-1240P to the Core i7-1280P or the Core i5-1235U to the Core i7-1265U.
We recently reviewed the Core i5-1250P version and now our focus for this review will be the Core i7-1265U version of the same ThinkPad X1 Carbon G10 model. Check out our existing on the Core-P version to learn more about the chassis, ports, keyboard, and other physical features of the model.
Competitors to the ThinkPad X1 Carbon G10 include other high-end business subnotebooks like the Dell Latitude 7420, Asus ExpertBook B1, HP EliteBook 845 G9, or the MSI Summit series.
More Lenovo reviews:
Potential Competitors in Comparison
Rating | Date | Model | Weight | Height | Size | Resolution | Best Price |
|---|---|---|---|---|---|---|---|
| 90.2 % | 12/2022 | Lenovo ThinkPad X1 Carbon G10 Core i7-1265U i7-1265U, Iris Xe G7 96EUs | 1.2 kg | 15.36 mm | 14.00" | 1920x1200 | |
| 90.2 % | 06/2022 | Lenovo ThinkPad X1 Carbon G10 21CC001RGE i5-1250P, Iris Xe G7 80EUs | 1.2 kg | 15.36 mm | 14.00" | 1920x1200 | |
| 88.6 % | 11/2022 | HP EliteBook 845 G9 6F6H9EA R5 PRO 6650U, Radeon 660M | 1.4 kg | 19 mm | 14.00" | 1920x1200 | |
| 86.6 % | 10/2022 | LG Gram 14Z90Q i5-1240P, Iris Xe G7 80EUs | 980 g | 16.8 mm | 14.00" | 1920x1200 | |
| 90.1 % | 04/2022 | Dell Latitude 7420 JW6MH i5-1145G7, Iris Xe G7 80EUs | 1.3 kg | 17.3 mm | 14.00" | 1920x1080 | |
| 83.9 % | 11/2021 | Asus ExpertBook B1 B1400CEAE, i5-1135G7 i5-1135G7, Iris Xe G7 80EUs | 1.5 kg | 19.2 mm | 14.00" | 1920x1080 |
Case
Communication
| Networking | |
| iperf3 transmit AX12 | |
| Asus ExpertBook B1 B1400CEAE, i5-1135G7 | |
| Dell Latitude 7420 JW6MH | |
| iperf3 receive AX12 | |
| Dell Latitude 7420 JW6MH | |
| Asus ExpertBook B1 B1400CEAE, i5-1135G7 | |
| iperf3 receive AXE11000 6GHz | |
| LG Gram 14Z90Q | |
| Lenovo ThinkPad X1 Carbon G10 21CC001RGE | |
| Lenovo ThinkPad X1 Carbon G10 Core i7-1265U | |
| iperf3 receive AXE11000 | |
| HP EliteBook 845 G9 6F6H9EA | |
| Lenovo ThinkPad X1 Carbon G10 Core i7-1265U | |
| iperf3 transmit AXE11000 | |
| Lenovo ThinkPad X1 Carbon G10 Core i7-1265U | |
| iperf3 transmit AXE11000 6GHz | |
| Lenovo ThinkPad X1 Carbon G10 21CC001RGE | |
| Lenovo ThinkPad X1 Carbon G10 Core i7-1265U | |
Webcam
Accessories and Warranty
There are no extras in the box other than the AC adapter. A one-year on-site manufacturer warranty applies if purchased in the US.
Display
Interestingly, our Core-U unit uses a 1200p IPS panel from IVO instead of the B140UAN02.1 panel from AU Optronics as found on our Core-P unit. Though they both cover the sRGB standard completely, the IVO panel appears to offer slower response times and an inferior contrast ratio than the AUO panel as shown by our measurements below. Ghosting is more apparent on the IVO panel as a result.
There are a couple of benefits with the IVO panel, however. The backlight on our review unit is slightly brighter on average and it exhibits no pulse-width modulation unlike on the AUO panel of our Core-P configuration. Users who might be sensitive to screen flickering may prefer the IVO panel as a result. Unfortunately, there is no way of knowing or guaranteeing which of the two panels you will get if ordering online.
| |||||||||||||||||||||||||
Brightness Distribution: 87 %
Center on Battery: 421.9 cd/m²
Contrast: 1455:1 (Black: 0.29 cd/m²)
ΔE Color 1.69 | 0.55-29.43 Ø5.2, calibrated: 0.5
ΔE Greyscale 2.8 | 0.57-98 Ø5.4
70.2% AdobeRGB 1998 (Argyll 2.2.0 3D)
99.5% sRGB (Argyll 2.2.0 3D)
68.7% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.13
| Lenovo ThinkPad X1 Carbon G10 Core i7-1265U R140NW4D R0, IPS, 1920x1200, 14.00 | Lenovo ThinkPad X1 Carbon G10 21CC001RGE B140UAN02.1, IPS LED, 1920x1200, 14.00 | HP EliteBook 845 G9 6F6H9EA AUOA49A, IPS, 1920x1200, 14.00 | LG Gram 14Z90Q LG LP140WU1-SPF1, IPS, 1920x1200, 14.00 | Dell Latitude 7420 JW6MH Chi Mei CMN1416 CHF07 140HCG, IPS, 1920x1080, 14.00 | Asus ExpertBook B1 B1400CEAE, i5-1135G7 Chi Mei CMN14D4, IPS, 1920x1080, 14.00 | |
|---|---|---|---|---|---|---|
| Display | 6% | 7% | 22% | -1% | -37% | |
| Display P3 Coverage | 68.7 | 74.6 9% | 75.4 10% | 98.4 43% | 68 -1% | 42.8 -38% |
| sRGB Coverage | 99.5 | 98.6 -1% | 100 1% | 99.9 0% | 99 -1% | 63.9 -36% |
| AdobeRGB 1998 Coverage | 70.2 | 76.5 9% | 76.6 9% | 85.9 22% | 70 0% | 44.3 -37% |
| Response Times | 31% | 16% | 29% | 20% | 41% | |
| Response Time Grey 50% / Grey 80% * | 55.2 ? | 45.5 ? 18% | 58.8 ? -7% | 47.5 ? 14% | 55 ? -0% | 35.2 ? 36% |
| Response Time Black / White * | 43.2 ? | 24 ? 44% | 26.7 ? 38% | 24.5 ? 43% | 26 ? 40% | 23.2 ? 46% |
| PWM Frequency | 53050 ? | 25000 ? | ||||
| Screen | -49% | -23% | -47% | -2% | -168% | |
| Brightness middle | 421.9 | 372 -12% | 408 -3% | 341 -19% | 408 -3% | 256 -39% |
| Brightness | 420 | 362 -14% | 402 -4% | 305 -27% | 378 -10% | 239 -43% |
| Brightness Distribution | 87 | 94 8% | 92 6% | 87 0% | 86 -1% | 83 -5% |
| Black Level * | 0.29 | 0.18 38% | 0.24 17% | 0.26 10% | 0.22 24% | 0.23 21% |
| Contrast | 1455 | 2067 42% | 1700 17% | 1312 -10% | 1855 27% | 1113 -24% |
| Colorchecker dE 2000 * | 1.69 | 3.4 -101% | 2.09 -24% | 3.11 -84% | 1.54 9% | 6.2 -267% |
| Colorchecker dE 2000 max. * | 3.55 | 6.7 -89% | 5.09 -43% | 8.29 -134% | 2.72 23% | 18.2 -413% |
| Colorchecker dE 2000 calibrated * | 0.5 | 1.8 -260% | 1.56 -212% | 0.83 -66% | 1.08 -116% | 3.8 -660% |
| Greyscale dE 2000 * | 2.8 | 4.3 -54% | 1.7 39% | 5.3 -89% | 1.95 30% | 5 -79% |
| Gamma | 2.13 103% | 2.13 103% | 2.138 103% | 2.037 108% | 2.33 94% | 1.97 112% |
| CCT | 6442 101% | 6158 106% | 6628 98% | 7571 86% | 6806 96% | 7364 88% |
| Total Average (Program / Settings) | -4% /
-26% | 0% /
-11% | 1% /
-21% | 6% /
2% | -55% /
-110% |
* ... smaller is better
The panel is already well-calibrated out of the box with average grayscale and color deltaE values of only 2.8 and 1.69, respectively. Our own X-Rite colorimeter calibration would improve these averages even further to <1 each, but this won't be necessary for most users. Our calibrated ICM profile is available above for free for owners who want to try.
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 43.2 ms ... rise ↗ and fall ↘ combined | ↗ 22 ms rise |  |
| ↘ 21.2 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.4 (minimum) to 240 (maximum) ms. » 98 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (22.5 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 55.2 ms ... rise ↗ and fall ↘ combined | ↗ 28.4 ms rise |  |
| ↘ 26.8 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.25 (minimum) to 636 (maximum) ms. » 90 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (35.5 ms). | ||
Screen Flickering / PWM (Pulse-Width Modulation)
| Screen flickering / PWM not detected |  | ||
In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 19232 (minimum: 5 - maximum: 3846000) Hz was measured. | |||
Performance — Intel 12th Gen
Testing Conditions
We set our unit to 'Best performance' mode via Windows prior to running any benchmarks below. The pre-installed Vantage software includes no power profile options with Intelligent Cooling enabled by default as shown by the screenshot below.
Processor
When running CineBench R15 xT in a loop, our Core i7-1265U would be slightly slower than the Core i5-1250P during the start of the test. As the looping benchmark progresses, however, the i7-1265U would overtake the i5-1250P as shown by our comparison graph below. These results suggest that the Core i5-1250P can have higher initial Turbo Boost performance than our i7-1265U, but that the gains are short-lived.
This isn't to say that the Core-P SKUs should be avoided. Upgrading to the highest-end Core i7-1280P configuration, for example, may boost multi-thread performance by 50 to 60 percent over our Core i7-1265U based on our experience with the Yoga Slim 9 14.
Cinebench R15 Multi Loop
Cinebench R23: Multi Core | Single Core
Cinebench R15: CPU Multi 64Bit | CPU Single 64Bit
Blender: v2.79 BMW27 CPU
7-Zip 18.03: 7z b 4 | 7z b 4 -mmt1
Geekbench 5.4: Multi-Core | Single-Core
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
Cinebench R23: Multi Core | Single Core
Cinebench R15: CPU Multi 64Bit | CPU Single 64Bit
Blender: v2.79 BMW27 CPU
7-Zip 18.03: 7z b 4 | 7z b 4 -mmt1
Geekbench 5.4: Multi-Core | Single-Core
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
* ... smaller is better
* ... smaller is better
AIDA64: FP32 Ray-Trace | FPU Julia | CPU SHA3 | CPU Queen | FPU SinJulia | FPU Mandel | CPU AES | CPU ZLib | FP64 Ray-Trace | CPU PhotoWorxx
System Performance
PCMark 10 results are consistently higher than our Core-i5-P powered ThinkPad X1 Carbon G10 especially in the Digital Contention Creation subtest where graphics performance matters most.
CrossMark: Overall | Productivity | Creativity | Responsiveness
| CrossMark / Productivity | |
| Lenovo ThinkPad X1 Carbon G10 Core i7-1265U | |
| Average Intel Core i7-1265U, Intel Iris Xe Graphics G7 96EUs (1387 - 1586, n=6) | |
| Lenovo ThinkPad X1 Carbon G10 21CC001RGE | |
| Dell Latitude 7420 JW6MH | |
| CrossMark / Responsiveness | |
| Lenovo ThinkPad X1 Carbon G10 Core i7-1265U | |
| Lenovo ThinkPad X1 Carbon G10 21CC001RGE | |
| Average Intel Core i7-1265U, Intel Iris Xe Graphics G7 96EUs (1193 - 1521, n=6) | |
| Dell Latitude 7420 JW6MH | |
| PCMark 10 Score | 5467 points | |
Help | ||
* ... smaller is better
DPC Latency
LatencyMon reveals DPC issues when opening multiple browser tabs of our homepage. 4K video playback at 60 FPS is otherwise perfect with low CPU utilization and no dropped frames.
| DPC Latencies / LatencyMon - interrupt to process latency (max), Web, Youtube, Prime95 | |
| Lenovo ThinkPad X1 Carbon G10 Core i7-1265U | |
| Lenovo ThinkPad X1 Carbon G10 21CC001RGE | |
| HP EliteBook 845 G9 6F6H9EA | |
| Asus ExpertBook B1 B1400CEAE, i5-1135G7 | |
| LG Gram 14Z90Q | |
| Dell Latitude 7420 JW6MH | |
* ... smaller is better
Storage Devices — One Drive Only
Our unit ships with a 512 GB PCIe3 x4 Kioxia NVMe SSD even though the system supports PCie4 x4 drives. Transfer rates are steady and without any major performance throttling unlike what we observed on the PCIe4 x4 Samsung drive in our Core-P configuration. This suggests that most PCIe4 x4 NVMe SSDs won't be able to run at their highest speeds for long periods inside of this ThinkPad anyway due to temperature concerns.
* ... smaller is better