vs
8.9Graphics8.0
9.0Overall performance8.4
9.8Display9.4
4.5Memory & storage6.4
2.7Battery & portability7.8
7.7Features & cooling7.1
Dimensions
Size comparison
ROG Strix Scar 18 G835 RTX 5090 (2025)Blade 18 RTX 5080 (2025)
| ROG Strix Scar 18 G835 RTX 5090 (2025) | Blade 18 RTX 5080 (2025) | Difference | |
|---|---|---|---|
| Depth | 298 mm | 275.4 mm | +22.6 mm |
| Width | 399 mm | 400 mm | −1 mm |
| Thickness | 32 mm | 27.9 mm | +4.1 mm |
| Weight | 3.3 kg | 3.1 kg | +0.2 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix Scar 18 G835 RTX 5090 (2025) better than Blade 18 RTX 5080 (2025)?
- Brightness1,200 nits vs 500 nits2.4×
- Resolution class4K (2160p/2400p) vs QHD (1440p/1600p)
- GPU compute (FP32)51.4 TFLOPS vs 42 TFLOPS+22%
- Video memory24 GB vs 16 GB+50%
- 3DMark Steel Nomad Light30,125 vs 27,655+9%
- GPU shader cores10,496 vs 7,680+37%
- Liquid metal (CPU)Yes · Blade 18 RTX 5080 (2025): No
- Dolby AtmosYes · Blade 18 RTX 5080 (2025): No
- Fan noise (max. load)53.7 dB vs 66.3 dB+23%
Why is Blade 18 RTX 5080 (2025) better than ROG Strix Scar 18 G835 RTX 5090 (2025)?
- SSD (up to)4,000 GB vs 8,192 GB2×
- Weight3.3 kg vs 3.1 kg+6%
- SD card readerNo · ROG Strix Scar 18 G835 RTX 5090 (2025): Yes
- Thickness32 mm vs 27.9 mm+15%
- Webcam1,080p vs 1,440p+33%
- SSD (base)1,000 GB vs 1,024 GB+2%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5090 Laptop | GeForce RTX 5080 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 175 W |
| Video memory | 24 GB | 16 GB |
| Video memory type | GDDR7 | GDDR7 |
| GPU shader cores | 10,496 | 7,680 |
| GPU compute (FP32) | 51.4 TFLOPS | 42 TFLOPS |
| 3DMark Steel Nomad Light | 30,125 | 27,655 |
| Processor | ||
| Processor | Core Ultra 9 290HX Plus | Core Ultra 9 275HX |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| CPU threads | — | 24 |
| Max CPU clock | 5.5 GHz | 5.4 GHz |
| Processor options | Core Ultra 9 275HX, Core Ultra 9 290HX Plus | Core Ultra 9 275HX |
| Geekbench 6 multi-core | — | 22,639 |
| Geekbench 6 single-core | — | 3,281 |
| Cinebench 2024 multi-core | — | 2,115 |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 3840 × 2400 | 2560 × 1600 |
| Resolution class | 4K (2160p/2400p) | QHD (1440p/1600p) |
| Refresh rate | 300 Hz | 300 Hz |
| Panel type | Mini-LED | Mini-LED |
| Brightness | 1,200 nits | 500 nits |
| sRGB coverage | 100% | — |
| Response time | 3 ms | — |
| DCI-P3 coverage | 100% | — |
| Pixel density | 168 ppi | 168 ppi |
| Aspect ratio | 16:10 | 16:10 |
| G-Sync / FreeSync | Yes | Yes |
| Advanced Optimus | No | No |
| MUX switch | Yes | Yes |
| HDR | Yes | — |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 64 GB | 64 GB |
| RAM (base) | 32 GB | 32 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) | 4,000 GB | 8,192 GB |
| SSD (base) | 1,000 GB | 1,024 GB |
| M.2 SSD slots | 2 | 2 |
| SSD interface | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Battery & power | ||
| Battery capacity | 90 Wh | 92 Wh |
| Power adapter | 380 W | 330 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 100 W | 100 W |
| Design & cooling | ||
| Weight | 3.3 kg | 3.1 kg |
| Thickness | 32 mm | 27.9 mm |
| Width | 399 mm | 400 mm |
| Depth | 298 mm | 275.4 mm |
| Body material | Aluminium, Plastic | Aluminium |
| Colours | Black | Black |
| Cooling fans | 3 | 3 |
| Vapor chamber cooling | Yes | Yes |
| Liquid metal (CPU) | Yes | No |
| Fan noise (max. load) | 53.7 dB | 66.3 dB |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 5 | Thunderbolt 5 |
| Thunderbolt or USB4 | Yes | Yes |
| USB-C ports | 2 | 2 |
| USB-A ports | 3 | 3 |
| 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 7 |
| Bluetooth | 5.4 | 5.4 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Key travel | — | 1.5 mm |
| Webcam | 1,080p | 1,440p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 4 speakers | 4.2 |
| Dolby Atmos | Yes | No |
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