Lenovo ThinkPad X1 Carbon Gen 9 14" (Intel) vs Asus ZenBook 14 UM425
51
out of 100
VS
53
out of 100
Please select specific configurations for the laptops to get a more accurate comparative review
Review
Performance
System and application performance
Gaming
Performance in popular 3D games
Display
Viewing angle, color accuracy, brightness
Battery Life
Potential battery life in light and average use
Connectivity
Ports, webcam and other interfaces
Portability
Design, materials, durability and usability
You can adjust the importance of each feature to more precisely determine which laptop better suits your personal needs.
Key Differences
Advantages of the Lenovo ThinkPad X1 Carbon Gen 9 14" (Intel)
- Includes an old-school USB-A port
Advantages of the Asus ZenBook 14 UM425
- Can run popular games at about 55-75% higher FPS
- Around 37% better multi-core CPU performance in the Cinebench R23 test
- Features a bigger (~18%) battery – 67 against 57 watt-hours
Value for money
Please input the prices of the laptops (with selected configurations) and press the "Calculate" button to determine which one offers better value for money.
Tests and Specifications
Comparison table of test results and technical specsCase
| Weight | 1.13 kg (2.49 lbs) | 1.22 kg (2.69 lbs) |
| Dimensions | 314.5 x 221.6 x 14.9 mm 12.38 x 8.72 x 0.59 inches |
319 x 210 x 15.8 mm 12.56 x 8.27 x 0.62 inches |
| Area | 697 cm2 (108 inches2) | 670 cm2 (103.9 inches2) |
| Screen-to-body ratio | ~81.5% | ~80.6% |
| Side bezels | 6.5 mm | 4.6 mm |
| Colors | Black | Silver, Gray |
| Material | Top: Carbon fiber Middle: Aluminum Bottom: Aluminum |
Aluminum |
| Transformer | No | No |
| Opening angle | 180° | - |
Size comparison
| Cooling system | Active | Active |
| Vapor chamber | No | No |
| Liquid metal | No | - |
| Number of fans | 2 | 1 |
| Noise level (max. load) | 34.3 dB | 47 dB |
Display
| Size | 14 inches | 14 inches |
| Type | IPS LCD | OLED |
| Refresh rate | 60 Hz | 60 Hz |
| PPI | 162 ppi | 157 ppi |
| Aspect ratio | 16:10 | 16:9 |
| Resolution | 1920 x 1200 pixels | 1920 x 1080 pixels |
| HDR support | No | No |
| Sync technology | No | No |
| Touchscreen | No | No |
| Coating | Matte | Matte |
| Ambient light sensor | No | Yes |
Screen space comparison
ThinkPad X1 Carbon Gen 9 14" (Intel)
14″ (16:10 ratio) = 88.1 in2
ZenBook 14 UM425
14″ (16:9 ratio) = 83.8 in2
~5% more screen space
| Contrast | 1000:1 | 1195:1 |
| sRGB color space | 100% | 96.1% |
| Adobe RGB profile | - | 65.9% |
| DCI-P3 color gamut | - | 63.8% |
| Response time | - | 24 ms |
Max. brightness
Battery
Capacity
| Full charging time | 1:53 hr | - |
| Battery type | Li-Po | Li-Ion |
| Replaceable | No | No |
| Fast charging | Yes | Yes |
| USB Power Delivery | Yes | Yes |
| Charging port position | Left | Left |
| Charge power | 45 / 65 W | 65 / 100 W |
| Weight of AC adapter | 332 grams | 214 grams |
CPU
CPU name
| Base frequency | 0.9-2.4 GHz | 2.1 GHz |
| Turbo frequency | 4.2 GHz | 4 GHz |
| Cores | 4 | 6 |
| Threads | 8 | 12 |
| L3 Cache | 8 MB | 8 MB |
| Integrated GPU | Iris Xe Graphics G7 80EU | Radeon RX Vega 7 |
| Fabrication process | 10 nm | 7 nm |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Graphics Card
GPU name
| TGP | 15 W | - |
| Type | Integrated | Dedicated |
| Fabrication process | 10 nm | 12 nm |
| GPU base clock | 300 MHz | - |
| GPU boost clock | 1100 MHz | - |
| FLOPS | 1.41 TFLOPS | 2.822 TFLOPS |
| Memory size | System Shared | 2 GB |
| Memory type | LPDDR4X | GDDR6 |
| Memory bus | - | 64 bit |
| Memory speed | 4.27 Gbps | ~8-10 Gbps |
| Shading units (cores) | 640 | 896 |
| Texture mapping units (TMUs) | 40 | 56 |
| Raster operations pipelines (ROPs) | 20 | 32 |
GPU performance
RAM
RAM size
| Channels | 2x4 GB | 2x4 GB |
| Clock | 4266 MHz | 3733 MHz |
| Type | LPDDR4X | LPDDR4X |
| Upgradable | No | No |
Storage
Storage size
| Bus | PCI-E Gen 3.0 (4x) | PCI-E Gen 3.0 (4x) |
| Storage type | SSD (M2) | SSD (M2) |
| Channels | 1x256 GB | 1x256 GB |
| Upgradable | Yes | Yes |
| Total slots | 1 | 1 |
| NVMe | Yes | Yes |
Sound
| Audio chip | Realtek ALC3306 | Realtek ALC294 |
| Speakers | 2.2 (2 tweeters and 2 woofers) | 2.0 |
| Power | 2x2W, 2x0.8W | - |
| Dolby Atmos | Yes | No |
| Loudness | ~80.3 dB | ~83 dB |
| Microphones | 4 | 2 |
Connectivity
| Wi-Fi standard | v6 | v6 |
| Bluetooth | v5.2 | v5 |
| Fingerprint | Yes | No |
| Infrared sensor | Optional | Yes |
| Optical drive | No | No |
| Webcam | Above the display | Above the display |
| Webcam resolution | 1280 x 720 | 1280 x 720 |
| USB-A | 2x USB 3.2 | 1x USB 3.2 |
| USB Type-C | 2x USB 4.0 | 2x USB 3.2 |
| Thunderbolt | Thunderbolt 4 | No |
| HDMI | 1x HDMI 2.0 | 1x HDMI 2.0 |
| DisplayPort | No | No |
| VGA | No | No |
| Audio jack (3.5 mm) | Yes | Yes |
| Ethernet (RJ45) | No | No |
| SD card reader | No | Yes |
| Proprietary charging port | No | No |
Input
| Keyboard type | Island | Island |
| Numpad | No | No |
| Backlight | Yes | Yes |
| Key travel | 1.5 mm | 1.4 mm |
| Size | 11.5 x 5.5 cm | - |
| Surface | Glass | Glass |
| Windows Precision | Yes | Yes |
*Disclaimer! Ports, speakers, display, and other specifications can vary depending on the laptop's specific configuration or region.
Cast your vote
Total votes: 12
