Asus ROG Strix SCAR 18 G835 RTX 5090 (2026) vs Asus ROG Zephyrus G16 GU605 RTX 5090 (2025)
What ROG Strix SCAR 18 G835 RTX 5090 (2026) does better (12) and where ROG Zephyrus G16 GU605 RTX 5090 (2025) wins (10) — every spec side by side.
vs
9.6Graphics9.5
9.8Overall performance9.8
9.2Display9.5
8.9Memory & storage7.3
2.1Battery & portability9.0
7.2Features & cooling9.0
Dimensions
Size comparison
ROG Strix SCAR 18 G835 RTX 5090 (2026)ROG Zephyrus G16 GU605 RTX 5090 (2025)
| ROG Strix SCAR 18 G835 RTX 5090 (2026) | ROG Zephyrus G16 GU605 RTX 5090 (2025) | Difference | |
|---|---|---|---|
| Depth | 298 mm | 246 mm | +52 mm |
| Width | 399 mm | 354 mm | +45 mm |
| Thickness | 35 mm | 17 mm | +18 mm |
| Weight | 3.7 kg | 2 kg | +1.8 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix SCAR 18 G835 RTX 5090 (2026) better than ROG Zephyrus G16 GU605 RTX 5090 (2025)?
- RAM (up to)128 GB vs 64 GB2×
- GPU power (TGP)175 W vs 120 W+46%
- SSD (up to)8,192 GB vs 2,000 GB4.1×
- Brightness1,200 nits vs 500 nits2.4×
- GPU compute (FP32)51.4 TFLOPS vs 37.9 TFLOPS+36%
- 3DMark Steel Nomad Light32,404 vs 24,671+31%
- CPU cores24 vs 16+50%
- Upgradable RAMYes · ROG Zephyrus G16 GU605 RTX 5090 (2025): No
- USB-A ports3 vs 2+50%
- Fan noise (max. load)54 dB vs 68 dB+26%
- Key travel2 mm vs 1.7 mm+18%
- Screen size18″ vs 16″+12%
Why is ROG Zephyrus G16 GU605 RTX 5090 (2025) better than ROG Strix SCAR 18 G835 RTX 5090 (2026)?
- Weight3.7 kg vs 1.95 kg+90%
- Thickness35 mm vs 17 mm2.1×
- Panel typeMini-LED vs OLED
- Response time3 ms vs 1 ms3×
- RAM (base)16 GB vs 64 GB4×
- RAM typeDDR5 vs LPDDR5X
- SD card readerNo · ROG Strix SCAR 18 G835 RTX 5090 (2026): Yes
- SSD (base)1,024 GB vs 2,000 GB+95%
- RAM speed6,403 MHz vs 7,467 MHz+17%
- Pixel density168 ppi vs 189 ppi+12%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5090 Laptop | GeForce RTX 5090 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 120 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 | 37.9 TFLOPS |
| 3DMark Steel Nomad Light | 32,404 | 24,671 |
| Processor | ||
| Processor | Core Ultra 9 290HX Plus | Core Ultra 9 285H |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 16 |
| CPU threads | 24 | — |
| Max CPU clock | 5.5 GHz | 5.4 GHz |
| Processor options | Core Ultra 9 290HX Plus | Core i7-14650HX, Core Ultra 9 285H |
| Geekbench 6 multi-core | 24,014 | — |
| Geekbench 6 single-core | 3,559 | — |
| Cinebench 2024 multi-core | 2,717 | — |
| Display | ||
| Screen size | 18″ | 16″ |
| Resolution | 2560 × 1600 | 2560 × 1600 |
| Resolution class | QHD (1440p/1600p) | QHD (1440p/1600p) |
| Refresh rate | 240 Hz | 240 Hz |
| Panel type | Mini-LED | OLED |
| Brightness | 1,200 nits | 500 nits |
| sRGB coverage | 100% | 100% |
| Response time | 3 ms | 1 ms |
| DCI-P3 coverage | 100% | 100% |
| Pixel density | 168 ppi | 189 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 | 64 GB |
| RAM type | DDR5 | LPDDR5X |
| RAM speed | 6,403 MHz | 7,467 MHz |
| Max. supported RAM | 128 GB | — |
| RAM slots | 2 | — |
| Upgradable RAM | Yes | No |
| 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 5.0 x4 | PCIe 4.0 x4 |
| Battery & power | ||
| Battery capacity | 90 Wh | 90 Wh |
| Power adapter | — | 240 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 100 W | — |
| Design & cooling | ||
| Weight | 3.7 kg | 1.95 kg |
| Thickness | 35 mm | 17 mm |
| Width | 399 mm | 354 mm |
| Depth | 298 mm | 246 mm |
| Body material | Aluminium, Plastic | Aluminium |
| Colours | Black | Grey |
| Cooling fans | 3 | 3 |
| Vapor chamber cooling | Yes | Yes |
| Liquid metal (CPU) | Yes | Yes |
| Fan noise (max. load) | 54 dB | 68 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 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 | ||
| Keyboard backlight | Single-colour RGB | — |
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | No |
| Key travel | 2 mm | 1.7 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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