Asus ROG Strix SCAR 18 G835 RTX 5080 (2026) vs Asus ROG Strix Scar 18 G835 RTX 5090 (2025)
What ROG Strix SCAR 18 G835 RTX 5080 (2026) does better (5) and where ROG Strix Scar 18 G835 RTX 5090 (2025) wins (9) — every spec side by side.
vs
8.3Graphics8.9
9.6Overall performance9.0
9.2Display9.8
8.8Memory & storage4.5
2.1Battery & portability2.7
7.3Features & cooling7.7
Dimensions
Size comparison
ROG Strix SCAR 18 G835 RTX 5080 (2026)ROG Strix Scar 18 G835 RTX 5090 (2025)
| ROG Strix SCAR 18 G835 RTX 5080 (2026) | ROG Strix Scar 18 G835 RTX 5090 (2025) | Difference | |
|---|---|---|---|
| Depth | 298 mm | 298 mm | = |
| Width | 399 mm | 399 mm | = |
| Thickness | 35 mm | 32 mm | +3 mm |
| Weight | 3.7 kg | 3.3 kg | +0.4 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix SCAR 18 G835 RTX 5080 (2026) better than ROG Strix Scar 18 G835 RTX 5090 (2025)?
- RAM (up to)128 GB vs 64 GB2×
- SSD (up to)8,192 GB vs 4,000 GB2×
- Max. supported RAM128 GB vs 64 GB2×
- RAM speed6,403 MHz vs 5,600 MHz+14%
- SSD (base)1,024 GB vs 1,000 GB+2%
Why is ROG Strix Scar 18 G835 RTX 5090 (2025) better than ROG Strix SCAR 18 G835 RTX 5080 (2026)?
- Resolution classQHD (1440p/1600p) vs 4K (2160p/2400p)
- Refresh rate240 Hz vs 300 Hz+25%
- GPU compute (FP32)42 TFLOPS vs 51.4 TFLOPS+22%
- Video memory16 GB vs 24 GB+50%
- Weight3.7 kg vs 3.3 kg+12%
- 3DMark Steel Nomad Light28,773 vs 30,125+5%
- GPU shader cores7,680 vs 10,496+37%
- RAM (base)16 GB vs 32 GB2×
- Thickness35 mm vs 32 mm+9%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5080 Laptop | GeForce RTX 5090 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 175 W |
| Video memory | 16 GB | 24 GB |
| Video memory type | GDDR7 | GDDR7 |
| GPU shader cores | 7,680 | 10,496 |
| GPU compute (FP32) | 42 TFLOPS | 51.4 TFLOPS |
| 3DMark Steel Nomad Light | 28,773 | 30,125 |
| Processor | ||
| Processor | Core Ultra 9 290HX Plus | Core Ultra 9 290HX Plus |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| CPU threads | 24 | — |
| Max CPU clock | 5.5 GHz | 5.5 GHz |
| Processor options | Core Ultra 9 290HX Plus | Core Ultra 9 275HX, Core Ultra 9 290HX Plus |
| Geekbench 6 multi-core | 24,014 | — |
| Geekbench 6 single-core | 3,559 | — |
| Cinebench 2024 multi-core | 2,717 | — |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 2560 × 1600 | 3840 × 2400 |
| Resolution class | QHD (1440p/1600p) | 4K (2160p/2400p) |
| Refresh rate | 240 Hz | 300 Hz |
| Panel type | Mini-LED | Mini-LED |
| Brightness | 1,200 nits | 1,200 nits |
| sRGB coverage | 100% | 100% |
| Response time | 3 ms | 3 ms |
| DCI-P3 coverage | 100% | 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 | Yes |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 128 GB | 64 GB |
| RAM (base) | 16 GB | 32 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 6,403 MHz | 5,600 MHz |
| Max. supported RAM | 128 GB | 64 GB |
| RAM slots | 2 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 8,192 GB | 4,000 GB |
| SSD (base) | 1,024 GB | 1,000 GB |
| M.2 SSD slots | 2 | 2 |
| SSD interface | PCIe 5.0 x4 | PCIe 4.0 x4 |
| Battery & power | ||
| Battery capacity | 90 Wh | 90 Wh |
| Power adapter | — | 380 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 100 W | 100 W |
| Design & cooling | ||
| Weight | 3.7 kg | 3.3 kg |
| Thickness | 35 mm | 32 mm |
| Width | 399 mm | 399 mm |
| Depth | 298 mm | 298 mm |
| Body material | Aluminium, Plastic | Aluminium, Plastic |
| Colours | Black | Black |
| Cooling fans | 3 | 3 |
| Vapor chamber cooling | Yes | Yes |
| Liquid metal (CPU) | Yes | Yes |
| Fan noise (max. load) | 54 dB | 53.7 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 | No |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.4 | 5.4 |
| Keyboard & camera | ||
| Keyboard backlight | Single-colour RGB | — |
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Key travel | 2 mm | — |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 2.2 | 4 speakers |
| Dolby Atmos | Yes | Yes |
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