Asus ROG Strix Scar 16 G635 RTX 5090 (2025) vs Lenovo Legion Slim 5 Gen 9 16 RTX 4070 (2024)
What ROG Strix Scar 16 G635 RTX 5090 (2025) does better (22) and where Legion Slim 5 Gen 9 16 RTX 4070 (2024) wins (4) — every spec side by side.
vs
9.7Graphics7.8
9.7Overall performance6.8
9.6Display8.6
6.6Memory & storage8.6
3.1Battery & portability7.9
9.7Features & cooling6.5
Dimensions
Size comparison
ROG Strix Scar 16 G635 RTX 5090 (2025)Legion Slim 5 Gen 9 16 RTX 4070 (2024)
| ROG Strix Scar 16 G635 RTX 5090 (2025) | Legion Slim 5 Gen 9 16 RTX 4070 (2024) | Difference | |
|---|---|---|---|
| Depth | 268 mm | 260.5 mm | +7.5 mm |
| Width | 354 mm | 359.7 mm | −5.7 mm |
| Thickness | 31 mm | 25.2 mm | +5.8 mm |
| Weight | 2.8 kg | 2.1 kg | +0.7 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix Scar 16 G635 RTX 5090 (2025) better than Legion Slim 5 Gen 9 16 RTX 4070 (2024)?
- GPU compute (FP32)51.4 TFLOPS vs 21.8 TFLOPS2.4×
- 3DMark Steel Nomad Light29,079 vs 13,2542.2×
- Video memory24 GB vs 8 GB3×
- CPU cores24 vs 83×
- Brightness1,200 nits vs 350 nits3.4×
- GPU shader cores10,496 vs 4,6082.3×
- GPU power (TGP)175 W vs 140 W+25%
- Panel typeMini-LED vs IPS
- Thunderbolt or USB4Yes · Legion Slim 5 Gen 9 16 RTX 4070 (2024): No
- Refresh rate240 Hz vs 165 Hz+45%
- Battery capacity90 Wh vs 80 Wh+12%
- RAM (base)32 GB vs 8 GB4×
Why is Legion Slim 5 Gen 9 16 RTX 4070 (2024) better than ROG Strix Scar 16 G635 RTX 5090 (2025)?
- SSD (up to)1,000 GB vs 4,096 GB4.1×
- Weight2.8 kg vs 2.1 kg+33%
- Thickness31 mm vs 25.2 mm+23%
- SD card readerNo · ROG Strix Scar 16 G635 RTX 5090 (2025): Yes
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5090 Laptop | GeForce RTX 4070 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 140 W |
| Video memory | 24 GB | 8 GB |
| Video memory type | GDDR7 | GDDR6 |
| GPU shader cores | 10,496 | 4,608 |
| GPU compute (FP32) | 51.4 TFLOPS | 21.8 TFLOPS |
| 3DMark Steel Nomad Light | 29,079 | 13,254 |
| Processor | ||
| Processor | Core Ultra 9 275HX | Ryzen 7 7735HS |
| CPU maker | Intel | AMD |
| CPU cores | 24 | 8 |
| CPU threads | — | 16 |
| Max CPU clock | 5.4 GHz | 4.8 GHz |
| Processor options | Core Ultra 7 255HX, Core Ultra 9 275HX | Ryzen 7 7735HS, Ryzen 7 8845HS, Ryzen 9 8945HS |
| Geekbench 6 multi-core | — | 10,114 |
| Geekbench 6 single-core | — | 2,192 |
| Cinebench 2024 multi-core | — | 741 |
| Display | ||
| Screen size | 16″ | 16″ |
| Resolution | 2560 × 1600 | 2560 × 1600 |
| Resolution class | QHD (1440p/1600p) | QHD (1440p/1600p) |
| Refresh rate | 240 Hz | 165 Hz |
| Panel type | Mini-LED | IPS |
| Brightness | 1,200 nits | 350 nits |
| sRGB coverage | 100% | 98% |
| Response time | 3 ms | 3 ms |
| DCI-P3 coverage | 100% | 100% |
| Pixel density | 189 ppi | 189 ppi |
| Aspect ratio | 16:10 | 16:10 |
| G-Sync / FreeSync | Yes | Yes |
| Advanced Optimus | No | No |
| MUX switch | Yes | Yes |
| HDR | Yes | Yes |
| Touchscreen | Yes | No |
| Memory & storage | ||
| RAM (up to) | 64 GB | 64 GB |
| RAM (base) | 32 GB | 8 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 5,600 MHz | 5,600 MHz |
| Max. supported RAM | 64 GB | 64 GB |
| RAM slots | 2 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 1,000 GB | 4,096 GB |
| SSD (base) | 1,000 GB | 512 GB |
| M.2 SSD slots | 2 | 2 |
| SSD interface | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Battery & power | ||
| Battery capacity | 90 Wh | 80 Wh |
| Power adapter | 380 W | 230 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 100 W | — |
| Design & cooling | ||
| Weight | 2.8 kg | 2.1 kg |
| Thickness | 31 mm | 25.2 mm |
| Width | 354 mm | 359.7 mm |
| Depth | 268 mm | 260.5 mm |
| Body material | Aluminium, Plastic | Aluminium, Plastic |
| Colours | Black | Gray |
| Cooling fans | 3 | 2 |
| Vapor chamber cooling | Yes | No |
| Liquid metal (CPU) | No | No |
| Fan noise (max. load) | 57.2 dB | — |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 5 | — |
| Thunderbolt or USB4 | Yes | No |
| USB-C ports | 2 | 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 | No | 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 | No | Yes |
| Key travel | 1.7 mm | 1.5 mm |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | No |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 4 speakers | 2.0 |
| Dolby Atmos | Yes | No |
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