Asus ROG Strix Scar 18 G835 RTX 5090 (2025) vs MSI Stealth 18 HX AI A2W RTX 5080 (2026)
What ROG Strix Scar 18 G835 RTX 5090 (2025) does better (7) and where Stealth 18 HX AI A2W RTX 5080 (2026) wins (3) — every spec side by side.
vs
9.8Display6.6
4.8Memory & storage3.0
2.7Battery & portability9.6
7.6Features & cooling9.0
Dimensions
Size comparison
ROG Strix Scar 18 G835 RTX 5090 (2025)Stealth 18 HX AI A2W RTX 5080 (2026)
| ROG Strix Scar 18 G835 RTX 5090 (2025) | Stealth 18 HX AI A2W RTX 5080 (2026) | Difference | |
|---|---|---|---|
| Depth | 298 mm | 290 mm | +8 mm |
| Width | 399 mm | 400 mm | −1 mm |
| Thickness | 32 mm | 24 mm | +8 mm |
| Weight | 3.3 kg | 2.9 kg | +0.4 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 Stealth 18 HX AI A2W RTX 5080 (2026)?
- Refresh rate300 Hz vs 120 Hz2.5×
- RAM (up to)64 GB vs 32 GB2×
- SSD (up to)4,000 GB vs 2,000 GB2×
- Video memory24 GB vs 16 GB+50%
- GPU shader cores10,496 vs 7,680+37%
- RAM (base)64 GB vs 32 GB2×
- SSD (base)4,000 GB vs 2,000 GB2×
Why is Stealth 18 HX AI A2W RTX 5080 (2026) better than ROG Strix Scar 18 G835 RTX 5090 (2025)?
- Battery capacity90 Wh vs 100 Wh+11%
- Weight3.3 kg vs 2.89 kg+14%
- Thickness32 mm vs 24 mm+33%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5090 Laptop | GeForce RTX 5080 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 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 | — |
| 3DMark Steel Nomad Light | 30,125 | — |
| Processor | ||
| Processor | Core Ultra 9 290HX Plus | Core Ultra 9 290HX Plus |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| Max CPU clock | 5.5 GHz | 5.5 GHz |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 3840 × 2400 | 3840 × 2400 |
| Resolution class | 4K (2160p/2400p) | 4K (2160p/2400p) |
| Refresh rate | 300 Hz | 120 Hz |
| Panel type | Mini-LED | Mini-LED |
| Brightness | 1,200 nits | — |
| sRGB coverage | 100% | — |
| Response time | 3 ms | — |
| DCI-P3 coverage | 100% | — |
| Pixel density | 168 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 | DDR5 |
| RAM speed | 5,600 MHz | — |
| Max. supported RAM | 64 GB | — |
| RAM slots | 2 | — |
| Upgradable RAM | Yes | — |
| SSD (up to) | 4,000 GB | 2,000 GB |
| SSD (base) | 4,000 GB | 2,000 GB |
| M.2 SSD slots | 2 | — |
| SSD interface | PCIe 4.0 x4 | — |
| Battery & power | ||
| Battery capacity | 90 Wh | 100 Wh |
| Power adapter | 380 W | 280 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 100 W | — |
| Design & cooling | ||
| Weight | 3.3 kg | 2.89 kg |
| Thickness | 32 mm | 24 mm |
| Width | 399 mm | 400 mm |
| Depth | 298 mm | 290 mm |
| Body material | Aluminium, Plastic | — |
| Colours | Black | Black |
| Cooling fans | 3 | — |
| Vapor chamber cooling | Yes | — |
| Liquid metal (CPU) | Yes | — |
| Fan noise (max. load) | 53.7 dB | — |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 5 | Thunderbolt 4 |
| Thunderbolt or USB4 | Yes | Yes |
| USB-C ports | 2 | — |
| 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 | No | — |
| 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 | — |
| Numeric keypad | Yes | — |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | — |
| Fingerprint reader | No | — |
| Audio | ||
| Speakers | 4 speakers | 6 speakers |
| Dolby Atmos | Yes | — |
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