Asus ROG Strix Scar 18 G835 RTX 5090 (2025) vs MSI Stealth 18 HX AI A2XW RTX 5080 (2025)
What ROG Strix Scar 18 G835 RTX 5090 (2025) does better (15) and where Stealth 18 HX AI A2XW RTX 5080 (2025) wins (9) — every spec side by side.
vs
8.9Graphics7.2
9.0Overall performance8.0
9.8Display3.6
4.5Memory & storage4.6
2.7Battery & portability9.6
7.7Features & cooling5.8
Dimensions
Size comparison
ROG Strix Scar 18 G835 RTX 5090 (2025)Stealth 18 HX AI A2XW RTX 5080 (2025)
| ROG Strix Scar 18 G835 RTX 5090 (2025) | Stealth 18 HX AI A2XW RTX 5080 (2025) | 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 A2XW RTX 5080 (2025)?
- Refresh rate300 Hz vs 144 Hz2.1×
- Panel typeMini-LED vs IPS
- SSD (up to)4,000 GB vs 2,000 GB2×
- GPU compute (FP32)51.4 TFLOPS vs 42 TFLOPS+22%
- 3DMark Steel Nomad Light30,125 vs 26,447+14%
- Video memory24 GB vs 16 GB+50%
- GPU shader cores10,496 vs 7,680+37%
- G-Sync / FreeSyncYes · Stealth 18 HX AI A2XW RTX 5080 (2025): No
- HDRYes · Stealth 18 HX AI A2XW RTX 5080 (2025): No
- Liquid metal (CPU)Yes · Stealth 18 HX AI A2XW RTX 5080 (2025): No
- Dolby AtmosYes · Stealth 18 HX AI A2XW RTX 5080 (2025): No
- Cooling fans3 vs 2+50%
Why is Stealth 18 HX AI A2XW RTX 5080 (2025) 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%
- RAM (base)32 GB vs 64 GB2×
- Max. supported RAM64 GB vs 128 GB2×
- SSD (base)1,000 GB vs 2,000 GB2×
- SD card readerNo · ROG Strix Scar 18 G835 RTX 5090 (2025): Yes
- USB-C charging power100 W vs 140 W+40%
- RAM speed5,600 MHz vs 6,400 MHz+14%
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 | 26,447 |
| Processor | ||
| Processor | Core Ultra 9 290HX Plus | Core Ultra 9 275HX |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| Max CPU clock | 5.5 GHz | 5.4 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 |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 3840 × 2400 | 3840 × 2400 |
| Resolution class | 4K (2160p/2400p) | 4K (2160p/2400p) |
| Refresh rate | 300 Hz | 144 Hz |
| Panel type | Mini-LED | IPS |
| Brightness | 1,200 nits | — |
| sRGB coverage | 100% | — |
| Response time | 3 ms | — |
| DCI-P3 coverage | 100% | — |
| Pixel density | 168 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 | 64 GB |
| RAM (base) | 32 GB | 64 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 5,600 MHz | 6,400 MHz |
| Max. supported RAM | 64 GB | 128 GB |
| RAM slots | 2 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 4,000 GB | 2,000 GB |
| SSD (base) | 1,000 GB | 2,000 GB |
| M.2 SSD slots | 2 | 2 |
| SSD interface | PCIe 4.0 x4 | 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 | 140 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 | Aluminium |
| Colours | Black | Black |
| Cooling fans | 3 | 2 |
| Vapor chamber cooling | Yes | Yes |
| Liquid metal (CPU) | Yes | No |
| Fan noise (max. load) | 53.7 dB | 63 dB |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 5 | Thunderbolt 4 |
| Thunderbolt or USB4 | Yes | Yes |
| 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 | 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 |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | Yes |
| Audio | ||
| Speakers | 4 speakers | 6 speakers |
| Dolby Atmos | Yes | No |
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