vs
9.1Graphics8.4
8.6Overall performance7.4
9.3Display7.9
5.9Memory & storage8.7
7.9Battery & portability9.2
9.0Features & cooling4.2
Dimensions
Size comparison
Legion 9 18 G10 RTX 5090 (2025)Titan GT77 HX RTX 4090 (2023)
| Legion 9 18 G10 RTX 5090 (2025) | Titan GT77 HX RTX 4090 (2023) | Difference | |
|---|---|---|---|
| Depth | 297 mm | 330 mm | −33 mm |
| Width | 403 mm | 397 mm | +6 mm |
| Thickness | 28 mm | 23 mm | +5 mm |
| Weight | 3.5 kg | 3.3 kg | +0.2 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Legion 9 18 G10 RTX 5090 (2025) better than Titan GT77 HX RTX 4090 (2023)?
- Refresh rate240 Hz vs 144 Hz+67%
- Geekbench 6 multi-core22,129 vs 17,215+29%
- 3DMark Steel Nomad Light30,865 vs 25,791+20%
- GPU compute (FP32)51.4 TFLOPS vs 45.2 TFLOPS+14%
- Video memory24 GB vs 16 GB+50%
- RAM (base)64 GB vs 32 GB2×
- Vapor chamber coolingYes · Titan GT77 HX RTX 4090 (2023): No
- Liquid metal (CPU)Yes · Titan GT77 HX RTX 4090 (2023): No
- Webcam1,440p vs 720p2×
- SSD (base)2,000 GB vs 1,024 GB+95%
- GPU shader cores10,496 vs 9,728+8%
- Wi-Fi standardWi-Fi 7 vs Wi-Fi 6E+8%
Why is Titan GT77 HX RTX 4090 (2023) 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 3.3 kg+6%
- Thickness28 mm vs 23 mm+22%
- Brightness540 nits vs 600 nits+11%
- CPU threads24 vs 32+33%
- DCI-P3 coverage89% vs 95%+7%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5090 Laptop | GeForce RTX 4090 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 175 W |
| Video memory | 24 GB | 16 GB |
| Video memory type | GDDR7 | GDDR6 |
| GPU shader cores | 10,496 | 9,728 |
| GPU compute (FP32) | 51.4 TFLOPS | 45.2 TFLOPS |
| 3DMark Steel Nomad Light | 30,865 | 25,791 |
| Processor | ||
| Processor | Core Ultra 9 275HX | Core i9-13950HX |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| CPU threads | 24 | 32 |
| Max CPU clock | 5.4 GHz | 5.5 GHz |
| Processor options | Core Ultra 9 275HX, Core Ultra 9 290HX Plus | Core i9-13950HX, Core i9-13980HX |
| Geekbench 6 multi-core | 22,129 | 17,215 |
| Geekbench 6 single-core | 3,236 | 3,108 |
| Cinebench 2024 multi-core | 2,079 | 2,023 |
| Display | ||
| Screen size | 18″ | 17.3″ |
| Resolution | 3840 × 2400 | 3840 × 2160 |
| Resolution class | 4K (2160p/2400p) | 4K (2160p/2400p) |
| Refresh rate | 240 Hz | 144 Hz |
| Panel type | Mini-LED | Mini-LED |
| Brightness | 540 nits | 600 nits |
| sRGB coverage | 100% | 100% |
| Response time | 3 ms | — |
| DCI-P3 coverage | 89% | 95% |
| Pixel density | 252 ppi | 255 ppi |
| Aspect ratio | 16:10 | 16:9 |
| G-Sync / FreeSync | Yes | Yes |
| Advanced Optimus | No | No |
| MUX switch | Yes | Yes |
| HDR | Yes | Yes |
| 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 | 5,600 MHz |
| Max. supported RAM | 192 GB | 128 GB |
| RAM slots | 4 | 4 |
| 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 | 3 |
| SSD interface | PCIe 5.0 x4 | PCIe 5.0 x4 |
| Battery & power | ||
| Battery capacity | 100 Wh | 100 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 | 3.3 kg |
| Thickness | 28 mm | 23 mm |
| Width | 403 mm | 397 mm |
| Depth | 297 mm | 330 mm |
| Body material | Aluminium | Aluminium, Plastic |
| Colours | Grey | Black |
| Cooling fans | 4 | 4 |
| Vapor chamber cooling | Yes | No |
| Liquid metal (CPU) | Yes | No |
| Fan noise (max. load) | 56 dB | 61 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 | Yes |
| 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 6E |
| Bluetooth | 5.4 | 5.3 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Key travel | 1.6 mm | — |
| Webcam | 1,440p | 720p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | Yes |
| Audio | ||
| Speakers | 6 speakers | 2.2 |
| Dolby Atmos | No | No |
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