Asus ROG Strix Scar 18 G835 RTX 5090 (2025) vs MSI Stealth 18 HX AI RTX 5090 (2025)
What ROG Strix Scar 18 G835 RTX 5090 (2025) does better (15) and where Stealth 18 HX AI RTX 5090 (2025) wins (9) — every spec side by side.
vs
8.9Graphics9.0
9.1Overall performance7.2
9.8Display2.2
4.8Memory & storage8.4
2.7Battery & portability9.6
7.6Features & cooling5.4
Dimensions
Size comparison
ROG Strix Scar 18 G835 RTX 5090 (2025)Stealth 18 HX AI RTX 5090 (2025)
| ROG Strix Scar 18 G835 RTX 5090 (2025) | Stealth 18 HX AI RTX 5090 (2025) | Difference | |
|---|---|---|---|
| Depth | 298 mm | 289.7 mm | +8.3 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 RTX 5090 (2025)?
- Refresh rate300 Hz vs 144 Hz2.1×
- Resolution class4K (2160p/2400p) vs Full HD (1080p/1200p)
- Panel typeMini-LED vs IPS
- SSD (base)4,000 GB vs 1,024 GB3.9×
- G-Sync / FreeSyncYes · Stealth 18 HX AI RTX 5090 (2025): No
- HDRYes · Stealth 18 HX AI RTX 5090 (2025): No
- RAM (base)64 GB vs 32 GB2×
- Liquid metal (CPU)Yes · Stealth 18 HX AI RTX 5090 (2025): No
- Dolby AtmosYes · Stealth 18 HX AI RTX 5090 (2025): No
- CPU cores24 vs 20+20%
- Cooling fans3 vs 2+50%
- USB-A ports3 vs 2+50%
Why is Stealth 18 HX AI RTX 5090 (2025) better than ROG Strix Scar 18 G835 RTX 5090 (2025)?
- RAM (up to)64 GB vs 128 GB2×
- Battery capacity90 Wh vs 100 Wh+11%
- Weight3.3 kg vs 2.89 kg+14%
- Thickness32 mm vs 24 mm+33%
- Max. supported RAM64 GB vs 128 GB2×
- SD card readerNo · ROG Strix Scar 18 G835 RTX 5090 (2025): Yes
- SSD (up to)4,000 GB vs 4,096 GB+2%
- 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 5090 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 175 W |
| Video memory | 24 GB | 24 GB |
| Video memory type | GDDR7 | GDDR7 |
| GPU shader cores | 10,496 | 10,496 |
| GPU compute (FP32) | 51.4 TFLOPS | 51.4 TFLOPS |
| 3DMark Steel Nomad Light | 30,125 | 30,526 |
| Processor | ||
| Processor | Core Ultra 9 290HX Plus | Core Ultra 7 255HX |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 20 |
| CPU threads | — | 20 |
| Max CPU clock | 5.5 GHz | 5.2 GHz |
| Processor options | — | Core Ultra 7 255HX, Core Ultra 7 265HX, Core Ultra 9 275HX, Core Ultra 9 290HX Plus |
| Geekbench 6 multi-core | — | 19,366 |
| Geekbench 6 single-core | — | 3,130 |
| Cinebench 2024 multi-core | — | 1,915 |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 3840 × 2400 | 1920 × 1200 |
| Resolution class | 4K (2160p/2400p) | Full HD (1080p/1200p) |
| 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 | 128 GB |
| RAM (base) | 64 GB | 32 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 | 4,096 GB |
| SSD (base) | 4,000 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 | 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 | 289.7 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 | — |
| 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 | 2.4 |
| Dolby Atmos | Yes | No |
Related comparisons
vs
Asus ROG Strix Scar 18 G835 RTX 5090 (2025)vsMSI Titan 18 HX AI A2XW RTX 5090 (2025)9.18.7vs
Asus ROG Strix Scar 18 G835 RTX 5090 (2025)vsLenovo Legion 9 18 G10 RTX 5080 (2025)9.18.9vs
Asus ROG Strix Scar 18 G835 RTX 5090 (2025)vsAsus ROG Strix G18 G814 RTX 5070 (2025)9.15.3vs
Asus ROG Strix Scar 18 G835 RTX 5090 (2025)vsGigabyte Gaming A18 RTX 5070 (2025)9.14.5vs
Asus ROG Strix Scar 18 G835 RTX 5090 (2025)vsMSI Titan 18 HX Dragon Edition Draco Epic A2WJ RTX 5090 (2026)9.18.3
vsAcer Predator Helios 18 AI PH18-I71 RTX 5090 (2026)vsAsus ROG Strix Scar 18 G835 RTX 5090 (2025)9.29.1