Lenovo ThinkPad X1 Carbon Gen 10 vs Dell XPS 15 9510 (2021)
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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 10
- Includes an old-school USB-A port
- Significantly easier to carry: weighs 690 grams less (around 1.52 lbs)
- Better webcam recording quality
- High-speed PCI Express Gen 4 interface
- Smaller footprint: 11% more compact case (108.8 vs 122.9 square inches)
Advantages of the Dell XPS 15 9510 (2021)
- Can run popular games at about 160-218% higher FPS
- Higher number of cutting-edge USB Type-C ports: 3 versus 2
- Around 41% better multi-core CPU performance in the Cinebench R23 test
- Thinner bezels and 10% higher screen-to-body ratio
- User-upgradable RAM (up to 64GB)
- Provides 25% higher max. screen brightness: 500 vs 400 nits
Value for money
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Tests and Specifications
Comparison table of test results and technical specsCase
| Weight | 1.12 kg (2.47 lbs) | 1.81 kg (3.99 lbs) |
| Dimensions | 315.6 x 222.5 x 15.36 mm 12.43 x 8.76 x 0.6 inches |
344.7 x 230 x 18 mm 13.57 x 9.06 x 0.71 inches |
| Area | 702 cm2 (108.9 inches2) | 793 cm2 (122.9 inches2) |
| Screen-to-body ratio | ~80.9% | ~89% |
| Side bezels | 7.1 mm | 4.3 mm |
| Colors | Black | Black, Silver |
| Material | Top: Carbon fiber Middle: Aluminum Bottom: Aluminum |
Top: Aluminum Middle: Carbon fiber Bottom: Aluminum |
| Transformer | No | No |
| Opening angle | 180° | - |
Size comparison
| Cooling system | Active | Active |
| Vapor chamber | No | No |
| Liquid metal | No | No |
| Number of fans | 2 | 2 |
| Noise level (max. load) | 35.4 dB | 38.2 dB |
Display
| Size | 14 inches | 15.6 inches |
| Type | IPS LCD | IPS LCD |
| Refresh rate | 60 Hz | 60 Hz |
| PPI | 162 ppi | 145 ppi |
| Aspect ratio | 16:10 | 16:10 |
| Resolution | 1920 x 1200 pixels | 1920 x 1200 pixels |
| HDR support | - | Yes, Dolby Vision |
| Sync technology | No | G-Sync |
| Touchscreen | No | No |
| Coating | Matte | Matte |
| Ambient light sensor | No | No |
Screen space comparison
XPS 15 9510 (2021)
15.6″ (16:10 ratio) = 109.4 in2
ThinkPad X1 Carbon Gen 10
14″ (16:10 ratio) = 88.1 in2
~24% more screen space
| Contrast | 1000:1 | 1650:1 |
| sRGB color space | 99% | 100% |
| Response time | - | 35 ms |
Max. brightness
Battery
Capacity
| Voltage | - | 11.4 V |
| Full charging time | 2:08 hr | 3:00 hr |
| Battery type | Li-Po | Li-Ion |
| Replaceable | No | No |
| Fast charging | Yes | Yes |
| USB Power Delivery | Yes | Yes |
| Charging port position | Left | Left, Right |
| Charge power | 65 W | 90 / 130 W |
| Cable length | - | 1 meters |
| Weight of AC adapter | 297 grams | 473 grams |
CPU
CPU name
| Base frequency | 1.3 GHz | 2.2-2.7 GHz |
| Turbo frequency | 4.4 GHz | 4.5 GHz |
| Cores | 10 (2P + 8E) | 6 |
| Threads | 12 | 12 |
| L3 Cache | 12 MB | 12 MB |
| Integrated GPU | Intel Iris Xe Graphics (80EU) | Intel UHD Graphics for 11th Gen (16 EU) |
| Fabrication process | 10 nm | 10 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 | 45 W |
| Nvidia Optimus | - | Yes |
| Type | Integrated | Dedicated |
| Fabrication process | 10 nm | 8 nm |
| GPU base clock | 300 MHz | 1065 MHz |
| GPU boost clock | 1100 MHz | 1343 MHz |
| FLOPS | 1.41 TFLOPS | 5.5 TFLOPS |
| Memory size | System Shared | 4 GB |
| Memory type | LPDDR5 | GDDR6 |
| Memory bus | - | 128 bit |
| Memory speed | 5.2 Gbps | 12 Gbps |
| Shading units (cores) | 640 | 2048 |
| Texture mapping units (TMUs) | 40 | 64 |
| Raster operations pipelines (ROPs) | 20 | 40 |
GPU performance
RAM
RAM size
| Channels | 2x4 GB | 2x4 GB |
| Clock | 5200 MHz | 3200 MHz |
| Type | LPDDR5 | DDR4 |
| Upgradable | No | Yes |
| Total slots | - | 2 |
| Max. ram size | - | 64 GB |
Storage
Storage size
| Bus | PCI-E Gen 4.0 (4x) | PCI-E Gen 3.0 (4x) |
| Storage type | SSD (M2) | SSD (M2) |
| Channels | 1x256 GB | 1x256 GB |
| Upgradable | Yes | Yes |
| Total slots | 1 | 2 |
| NVMe | Yes | Yes |
Sound
| Audio chip | Realtek ALC3306 | Realtek ALC3281-CG |
| Speakers | 4.0 | 2.2 (2 tweeters and 2 woofers) |
| Power | 2x2W | 2x2W, 2x1.5W |
| Dolby Atmos | Yes | No |
| Loudness | ~75 dB | ~88.8 dB |
| Microphones | 4 | 2 |
Connectivity
| Wi-Fi standard | v6E | v6 |
| Bluetooth | v5.2 | v5.1 |
| Fingerprint | Yes | Yes |
| Infrared sensor | Optional | Optional |
| Optical drive | No | No |
| Webcam | Above the display | Above the display |
| Webcam resolution | 1920 x 1080 | 1280 x 720 |
| USB-A | 2x USB 3.2 | No |
| USB Type-C | 2x USB 4.0 | 3x USB 4.0 |
| Thunderbolt | Thunderbolt 4 | Thunderbolt 4 |
| HDMI | 1x HDMI 2.0 | No |
| 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 | 11.0 x 5.6 cm | 15.1 x 9.1 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.
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