vs
8.5Display8.0
5.9Memory & storage2.4
7.9Battery & portability3.2
9.0Features & cooling9.3
Dimensions
Size comparison
Legion 9 18 G10 RTX 5080 (2025)Key 18 Pro RTX 5090 (2025)
| Legion 9 18 G10 RTX 5080 (2025) | Key 18 Pro RTX 5090 (2025) | Difference | |
|---|---|---|---|
| Depth | 297 mm | 320 mm | −23 mm |
| Width | 403 mm | 402 mm | +1 mm |
| Thickness | 28 mm | 30 mm | −2 mm |
| Weight | 3.5 kg | 4 kg | −0.5 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Legion 9 18 G10 RTX 5080 (2025) better than Key 18 Pro RTX 5090 (2025)?
- RAM (up to)64 GB vs 32 GB2×
- Weight3.5 kg vs 3.95 kg+13%
- RAM (base)64 GB vs 32 GB2×
- Brightness540 nits vs 500 nits+8%
- Thickness28 mm vs 30 mm+7%
- Bluetooth5.4 vs 5+8%
Why is Key 18 Pro RTX 5090 (2025) better than Legion 9 18 G10 RTX 5080 (2025)?
- Video memory16 GB vs 24 GB+50%
- GPU shader cores7,680 vs 10,496+37%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5080 Laptop | GeForce RTX 5090 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | — |
| Video memory | 16 GB | 24 GB |
| Video memory type | GDDR7 | GDDR7 |
| GPU shader cores | 7,680 | 10,496 |
| GPU compute (FP32) | 42 TFLOPS | — |
| 3DMark Steel Nomad Light | 26,314 | — |
| Processor | ||
| Processor | Core Ultra 9 275HX | Core Ultra 9 275HX |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| CPU threads | 24 | — |
| Max CPU clock | 5.4 GHz | 5.4 GHz |
| Processor options | Core Ultra 9 275HX, Core Ultra 9 290HX Plus | — |
| Geekbench 6 multi-core | 22,129 | — |
| Geekbench 6 single-core | 3,236 | — |
| Cinebench 2024 multi-core | 2,079 | — |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 3840 × 2400 | 3840 × 2160 |
| Resolution class | 4K (2160p/2400p) | 4K (2160p/2400p) |
| Refresh rate | 240 Hz | — |
| Panel type | IPS | IPS |
| Brightness | 540 nits | 500 nits |
| sRGB coverage | 100% | — |
| Response time | 3 ms | — |
| DCI-P3 coverage | 89% | — |
| Pixel density | 252 ppi | — |
| Aspect ratio | 16:10 | 16:10 |
| G-Sync / FreeSync | Yes | — |
| Advanced Optimus | No | — |
| MUX switch | Yes | — |
| HDR | Yes | — |
| Touchscreen | No | — |
| Memory & storage | ||
| RAM (up to) | 64 GB | 32 GB |
| RAM (base) | 64 GB | 32 GB |
| RAM type | DDR5 | — |
| RAM speed | 5,600 MHz | — |
| Max. supported RAM | 192 GB | — |
| RAM slots | 4 | — |
| Upgradable RAM | Yes | — |
| SSD (up to) | 2,000 GB | 2,000 GB |
| SSD (base) | 2,000 GB | 2,000 GB |
| M.2 SSD slots | 4 | — |
| SSD interface | PCIe 5.0 x4 | — |
| Battery & power | ||
| Battery capacity | 100 Wh | 98 Wh |
| Power adapter | 400 W | 330 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 140 W | — |
| Design & cooling | ||
| Weight | 3.5 kg | 3.95 kg |
| Thickness | 28 mm | 30 mm |
| Width | 403 mm | 402 mm |
| Depth | 297 mm | 320 mm |
| Body material | Aluminium | — |
| Colours | Black | Black |
| Cooling fans | 4 | — |
| Vapor chamber cooling | Yes | — |
| Liquid metal (CPU) | Yes | — |
| Fan noise (max. load) | 56 dB | — |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 5 | Thunderbolt 5 |
| Thunderbolt or USB4 | Yes | Yes |
| USB-C ports | 3 | — |
| USB-A ports | 3 | — |
| HDMI | HDMI 2.1 | HDMI 2.1 |
| HDMI 2.1 | Yes | Yes |
| (Mini) DisplayPort | No | — |
| Ethernet | 5 Gbit/s | 5 Gbit/s |
| Ethernet port | Yes | Yes |
| SD card reader | Yes | Yes |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.4 | 5 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | — |
| Numeric keypad | Yes | — |
| Key travel | 1.6 mm | — |
| Webcam | 1,440p | — |
| IR camera (face login) | Yes | — |
| Fingerprint reader | No | — |
| Audio | ||
| Speakers | 6 speakers | 2 speakers |
| Dolby Atmos | No | — |
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