Asus ROG Strix SCAR 18 G834 RTX 4090 (2024) vs MSI Stealth 18 HX AI A2XW RTX 5080 (2025)
What ROG Strix SCAR 18 G834 RTX 4090 (2024) does better (13) and where Stealth 18 HX AI A2XW RTX 5080 (2025) wins (14) — every spec side by side.
vs
8.2Graphics7.2
7.6Overall performance8.0
9.0Display3.6
6.4Memory & storage4.6
4.7Battery & portability9.6
3.7Features & cooling5.8
Dimensions
Size comparison
ROG Strix SCAR 18 G834 RTX 4090 (2024)Stealth 18 HX AI A2XW RTX 5080 (2025)
| ROG Strix SCAR 18 G834 RTX 4090 (2024) | Stealth 18 HX AI A2XW RTX 5080 (2025) | Difference | |
|---|---|---|---|
| Depth | 294 mm | 290 mm | +4 mm |
| Width | 399 mm | 400 mm | −1 mm |
| Thickness | 30.8 mm | 24 mm | +6.8 mm |
| Weight | 3.1 kg | 2.9 kg | +0.2 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix SCAR 18 G834 RTX 4090 (2024) better than Stealth 18 HX AI A2XW RTX 5080 (2025)?
- SSD (up to)8,192 GB vs 2,000 GB4.1×
- Refresh rate240 Hz vs 144 Hz+67%
- Panel typeMini-LED vs IPS
- GPU compute (FP32)45.2 TFLOPS vs 42 TFLOPS+8%
- GPU shader cores9,728 vs 7,680+27%
- 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%
- Pixel density168 ppi vs 126 ppi+33%
- Fan noise (max. load)52 dB vs 63 dB+21%
Why is Stealth 18 HX AI A2XW RTX 5080 (2025) better than ROG Strix SCAR 18 G834 RTX 4090 (2024)?
- Resolution classQHD (1440p/1600p) vs 4K (2160p/2400p)
- Battery capacity90 Wh vs 100 Wh+11%
- RAM (base)16 GB vs 64 GB4×
- Weight3.1 kg vs 2.89 kg+7%
- 3DMark Steel Nomad Light25,078 vs 26,447+5%
- Thickness30.8 mm vs 24 mm+28%
- Max. supported RAM64 GB vs 128 GB2×
- Vapor chamber coolingNo · ROG Strix SCAR 18 G834 RTX 4090 (2024): Yes
- SD card readerNo · ROG Strix SCAR 18 G834 RTX 4090 (2024): Yes
- IR camera (face login)No · ROG Strix SCAR 18 G834 RTX 4090 (2024): Yes
- SSD (base)1,024 GB vs 2,000 GB+95%
- Wi-Fi standardWi-Fi 6E vs Wi-Fi 7+8%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 4090 Laptop | GeForce RTX 5080 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 175 W |
| Video memory | 16 GB | 16 GB |
| Video memory type | GDDR6 | GDDR7 |
| GPU shader cores | 9,728 | 7,680 |
| GPU compute (FP32) | 45.2 TFLOPS | 42 TFLOPS |
| 3DMark Steel Nomad Light | 25,078 | 26,447 |
| Processor | ||
| Processor | Core i9-14900HX | Core Ultra 9 275HX |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| CPU threads | 32 | — |
| Max CPU clock | 5.8 GHz | 5.4 GHz |
| Processor options | Core i9-14900HX | Core Ultra 7 255HX, Core Ultra 7 265HX, Core Ultra 9 275HX, Core Ultra 9 290HX Plus |
| Geekbench 6 multi-core | 19,749 | — |
| Geekbench 6 single-core | 3,256 | — |
| Cinebench 2024 multi-core | 1,928 | — |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 2560 × 1600 | 3840 × 2400 |
| Resolution class | QHD (1440p/1600p) | 4K (2160p/2400p) |
| Refresh rate | 240 Hz | 144 Hz |
| Panel type | Mini-LED | IPS |
| Brightness | 1,100 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) | 16 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) | 8,192 GB | 2,000 GB |
| SSD (base) | 1,024 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 | 330 W | 280 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | — | 140 W |
| Design & cooling | ||
| Weight | 3.1 kg | 2.89 kg |
| Thickness | 30.8 mm | 24 mm |
| Width | 399 mm | 400 mm |
| Depth | 294 mm | 290 mm |
| Body material | Aluminium, Plastic | Aluminium |
| Colours | Black | Black |
| Cooling fans | 3 | 2 |
| Vapor chamber cooling | No | Yes |
| Liquid metal (CPU) | Yes | No |
| Fan noise (max. load) | 52 dB | 63 dB |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 4 | Thunderbolt 4 |
| Thunderbolt or USB4 | Yes | Yes |
| USB-C ports | 2 | 2 |
| USB-A ports | 2 | 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 6E | Wi-Fi 7 |
| Bluetooth | 5.3 | 5.4 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Key travel | 2 mm | — |
| Webcam | 720p | 1,080p |
| IR camera (face login) | No | Yes |
| Fingerprint reader | No | Yes |
| Audio | ||
| Speakers | 2.2 | 6 speakers |
| Dolby Atmos | Yes | No |
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