vs
9.1Graphics4.6
8.6Overall performance4.9
9.3Display2.3
5.9Memory & storage8.3
7.9Battery & portability9.6
9.0Features & cooling5.5
Dimensions
Size comparison
Legion 9 18 G10 RTX 5090 (2025)Stealth 18 HX AI RTX 5070 (2025)
| Legion 9 18 G10 RTX 5090 (2025) | Stealth 18 HX AI RTX 5070 (2025) | Difference | |
|---|---|---|---|
| Depth | 297 mm | 289.7 mm | +7.3 mm |
| Width | 403 mm | 400 mm | +3 mm |
| Thickness | 28 mm | 24 mm | +4 mm |
| Weight | 3.5 kg | 2.9 kg | +0.6 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Legion 9 18 G10 RTX 5090 (2025) better than Stealth 18 HX AI RTX 5070 (2025)?
- GPU compute (FP32)51.4 TFLOPS vs 26.2 TFLOPS+96%
- GPU power (TGP)175 W vs 115 W+52%
- 3DMark Steel Nomad Light30,865 vs 16,441+88%
- Video memory24 GB vs 8 GB3×
- Refresh rate240 Hz vs 144 Hz+67%
- GPU shader cores10,496 vs 4,6082.3×
- Resolution class4K (2160p/2400p) vs Full HD (1080p/1200p)
- Panel typeMini-LED vs IPS
- Geekbench 6 multi-core22,129 vs 19,366+14%
- Pixel density252 ppi vs 126 ppi2×
- G-Sync / FreeSyncYes · Stealth 18 HX AI RTX 5070 (2025): No
- HDRYes · Stealth 18 HX AI RTX 5070 (2025): No
Why is Stealth 18 HX AI RTX 5070 (2025) better than Legion 9 18 G10 RTX 5090 (2025)?
- RAM (up to)64 GB vs 128 GB2×
- SSD (up to)2,000 GB vs 4,096 GB2×
- Weight3.5 kg vs 2.89 kg+21%
- Thickness28 mm vs 24 mm+17%
- RAM speed5,600 MHz vs 6,400 MHz+14%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5090 Laptop | GeForce RTX 5070 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 115 W |
| Video memory | 24 GB | 8 GB |
| Video memory type | GDDR7 | GDDR7 |
| GPU shader cores | 10,496 | 4,608 |
| GPU compute (FP32) | 51.4 TFLOPS | 26.2 TFLOPS |
| 3DMark Steel Nomad Light | 30,865 | 16,441 |
| Processor | ||
| Processor | Core Ultra 9 275HX | Core Ultra 7 255HX |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 20 |
| CPU threads | 24 | 20 |
| Max CPU clock | 5.4 GHz | 5.2 GHz |
| Processor options | Core Ultra 9 275HX, Core Ultra 9 290HX Plus | Core Ultra 7 255HX, Core Ultra 7 265HX, Core Ultra 9 275HX, Core Ultra 9 290HX Plus |
| Geekbench 6 multi-core | 22,129 | 19,366 |
| Geekbench 6 single-core | 3,236 | 3,130 |
| Cinebench 2024 multi-core | 2,079 | 1,915 |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 3840 × 2400 | 1920 × 1200 |
| Resolution class | 4K (2160p/2400p) | Full HD (1080p/1200p) |
| Refresh rate | 240 Hz | 144 Hz |
| Panel type | Mini-LED | IPS |
| Brightness | 540 nits | — |
| sRGB coverage | 100% | — |
| Response time | 3 ms | — |
| DCI-P3 coverage | 89% | — |
| Pixel density | 252 ppi | 126 ppi |
| Aspect ratio | 16:10 | 16:10 |
| G-Sync / FreeSync | Yes | No |
| Advanced Optimus | No | No |
| MUX switch | Yes | Yes |
| HDR | Yes | No |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 64 GB | 128 GB |
| RAM (base) | 64 GB | 32 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 5,600 MHz | 6,400 MHz |
| Max. supported RAM | 192 GB | 128 GB |
| RAM slots | 4 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 2,000 GB | 4,096 GB |
| SSD (base) | 2,000 GB | 1,024 GB |
| M.2 SSD slots | 4 | 2 |
| SSD interface | PCIe 5.0 x4 | PCIe 4.0 x4 |
| Battery & power | ||
| Battery capacity | 100 Wh | 100 Wh |
| Power adapter | 400 W | 280 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 140 W | 140 W |
| Design & cooling | ||
| Weight | 3.5 kg | 2.89 kg |
| Thickness | 28 mm | 24 mm |
| Width | 403 mm | 400 mm |
| Depth | 297 mm | 289.7 mm |
| Body material | Aluminium | Aluminium |
| Colours | Grey | Black |
| Cooling fans | 4 | 2 |
| Vapor chamber cooling | Yes | Yes |
| Liquid metal (CPU) | Yes | No |
| Fan noise (max. load) | 56 dB | 63 dB |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 5 | Thunderbolt 4 |
| Thunderbolt or USB4 | Yes | Yes |
| USB-C ports | 3 | 2 |
| USB-A ports | 3 | 2 |
| HDMI | HDMI 2.1 | HDMI 2.1 |
| HDMI 2.1 | Yes | Yes |
| (Mini) DisplayPort | No | No |
| Ethernet | 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 | 5.4 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Key travel | 1.6 mm | — |
| Webcam | 1,440p | 1,080p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | Yes |
| Audio | ||
| Speakers | 6 speakers | 2.4 |
| Dolby Atmos | No | No |
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