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- ROG Strix Scar G16 G634 RTX 4080 (2023) vs ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)
Asus ROG Strix Scar G16 G634 RTX 4080 (2023) vs Asus ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)
What ROG Strix Scar G16 G634 RTX 4080 (2023) does better (3) and where ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026) wins (7) — every spec side by side.
vs
9.2Memory & storage7.8
4.4Battery & portability4.4
9.1Features & cooling9.8
Dimensions
Size comparison
ROG Strix Scar G16 G634 RTX 4080 (2023)ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)
| ROG Strix Scar G16 G634 RTX 4080 (2023) | ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026) | Difference | |
|---|---|---|---|
| Depth | 264 mm | 247 mm | +17 mm |
| Width | 354 mm | 355 mm | −1 mm |
| Thickness | 30 mm | 25 mm | +5 mm |
| Weight | 2.5 kg | 2.8 kg | −0.3 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix Scar G16 G634 RTX 4080 (2023) better than ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026)?
- SSD (up to)4,000 GB vs 2,000 GB2×
- Weight2.5 kg vs 2.82 kg+13%
- SSD (base)4,000 GB vs 2,000 GB2×
Why is ROG Zephyrus Duo 16 OLED GX651AX RTX 5090 (2026) better than ROG Strix Scar G16 G634 RTX 4080 (2023)?
- Video memory12 GB vs 24 GB2×
- Resolution classQHD (1440p/1600p) vs 3K (1800p/2000p)
- GPU shader cores7,424 vs 10,496+41%
- RAM typeDDR5 vs LPDDR5X
- Thickness30 mm vs 25 mm+20%
- Wi-Fi standardWi-Fi 6 vs Wi-Fi 7+17%
- Bluetooth5.2 vs 6+15%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 4080 Laptop | GeForce RTX 5090 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| Video memory | 12 GB | 24 GB |
| Video memory type | GDDR6 | GDDR7 |
| GPU shader cores | 7,424 | 10,496 |
| Processor | ||
| Processor | Core i9-13980HX | Core Ultra 9 386H |
| CPU maker | Intel | Intel |
| CPU cores | 24 | — |
| Max CPU clock | 5.6 GHz | — |
| Display | ||
| Screen size | 16″ | 16″ |
| Resolution | 2560 × 1600 | 2880 × 1800 |
| Resolution class | QHD (1440p/1600p) | 3K (1800p/2000p) |
| Panel type | — | OLED |
| Brightness | — | 1,100 nits |
| Aspect ratio | 16:10 | 16:10 |
| Touchscreen | — | Yes |
| Memory & storage | ||
| RAM (up to) | 64 GB | 64 GB |
| RAM (base) | 64 GB | 64 GB |
| RAM type | DDR5 | LPDDR5X |
| RAM speed | 4,800 MHz | — |
| SSD (up to) | 4,000 GB | 2,000 GB |
| SSD (base) | 4,000 GB | 2,000 GB |
| Battery & power | ||
| Battery capacity | 90 Wh | 90 Wh |
| Power adapter | — | 250 W |
| Design & cooling | ||
| Weight | 2.5 kg | 2.82 kg |
| Thickness | 30 mm | 25 mm |
| Width | 354 mm | 355 mm |
| Depth | 264 mm | 247 mm |
| Colours | Black | Grey |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 4 | Thunderbolt 4 |
| Thunderbolt or USB4 | Yes | Yes |
| HDMI | HDMI 2.1 | HDMI 2.1 |
| HDMI 2.1 | Yes | Yes |
| Ethernet | 5 Gbit/s | — |
| Ethernet port | Yes | Yes |
| SD card reader | Yes | Yes |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 6 | Wi-Fi 7 |
| Bluetooth | 5.2 | 6 |
| Keyboard & camera | ||
| Webcam | — | 1,080p |
| Audio | ||
| Speakers | 4 speakers | 4 speakers |
| Dolby Atmos | Yes | Yes |
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