Asus ROG Strix Scar 16 G635 RTX 5070 Ti (2025) vs Asus ROG Zephyrus Duo 16 GX650 RTX 4090 (2023)
What ROG Strix Scar 16 G635 RTX 5070 Ti (2025) does better (11) and where ROG Zephyrus Duo 16 GX650 RTX 4090 (2023) wins (9) — every spec side by side.
vs
9.1Graphics9.7
9.0Overall performance9.4
9.6Display9.3
5.3Memory & storage5.3
3.1Battery & portability3.6
9.7Features & cooling6.4
Dimensions
Size comparison
ROG Strix Scar 16 G635 RTX 5070 Ti (2025)ROG Zephyrus Duo 16 GX650 RTX 4090 (2023)
| ROG Strix Scar 16 G635 RTX 5070 Ti (2025) | ROG Zephyrus Duo 16 GX650 RTX 4090 (2023) | Difference | |
|---|---|---|---|
| Depth | 268 mm | 266 mm | +2 mm |
| Width | 354 mm | 355 mm | −1 mm |
| Thickness | 31 mm | 30 mm | +1 mm |
| Weight | 2.8 kg | 2.7 kg | +0.1 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix Scar 16 G635 RTX 5070 Ti (2025) better than ROG Zephyrus Duo 16 GX650 RTX 4090 (2023)?
- Panel typeMini-LED vs IPS
- Thunderbolt or USB4Yes · ROG Zephyrus Duo 16 GX650 RTX 4090 (2023): No
- CPU cores24 vs 16+50%
- Vapor chamber coolingYes · ROG Zephyrus Duo 16 GX650 RTX 4090 (2023): No
- IR camera (face login)Yes · ROG Zephyrus Duo 16 GX650 RTX 4090 (2023): No
- Wi-Fi standardWi-Fi 7 vs Wi-Fi 6+17%
- Brightness1,200 nits vs 1,100 nits+9%
- Cooling fans3 vs 2+50%
- USB-A ports3 vs 2+50%
- RAM speed5,600 MHz vs 4,800 MHz+17%
- Bluetooth5.4 vs 5.2+4%
Why is ROG Zephyrus Duo 16 GX650 RTX 4090 (2023) better than ROG Strix Scar 16 G635 RTX 5070 Ti (2025)?
- 3DMark Steel Nomad Light20,161 vs 26,424+31%
- GPU shader cores5,888 vs 9,728+65%
- GPU compute (FP32)37.4 TFLOPS vs 45.2 TFLOPS+21%
- Weight2.8 kg vs 2.67 kg+5%
- Video memory12 GB vs 16 GB+33%
- Liquid metal (CPU)No · ROG Strix Scar 16 G635 RTX 5070 Ti (2025): Yes
- SD card readerNo · ROG Strix Scar 16 G635 RTX 5070 Ti (2025): Yes
- Thickness31 mm vs 30 mm+3%
- Fan noise (max. load)57.2 dB vs 56 dB+2%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5070 Ti Laptop | GeForce RTX 4090 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 175 W |
| Video memory | 12 GB | 16 GB |
| Video memory type | GDDR7 | GDDR6 |
| GPU shader cores | 5,888 | 9,728 |
| GPU compute (FP32) | 37.4 TFLOPS | 45.2 TFLOPS |
| 3DMark Steel Nomad Light | 20,161 | 26,424 |
| Processor | ||
| Processor | Core Ultra 9 275HX | Ryzen 9 7945HX |
| CPU maker | Intel | AMD |
| CPU cores | 24 | 16 |
| CPU threads | — | 32 |
| Max CPU clock | 5.4 GHz | 5.4 GHz |
| Processor options | Core Ultra 7 255HX, Core Ultra 9 275HX | Ryzen 9 7945HX |
| Geekbench 6 multi-core | — | 19,038 |
| Geekbench 6 single-core | — | 3,105 |
| Cinebench 2024 multi-core | — | 1,961 |
| Display | ||
| Screen size | 16″ | 16″ |
| Resolution | 2560 × 1600 | 2560 × 1600 |
| Resolution class | QHD (1440p/1600p) | QHD (1440p/1600p) |
| Refresh rate | 240 Hz | 240 Hz |
| Panel type | Mini-LED | IPS |
| Brightness | 1,200 nits | 1,100 nits |
| sRGB coverage | 100% | 100% |
| Response time | 3 ms | 3 ms |
| DCI-P3 coverage | 100% | 99% |
| Pixel density | 189 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) | 32 GB | 32 GB |
| RAM (base) | 32 GB | 32 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 5,600 MHz | 4,800 MHz |
| Max. supported RAM | 64 GB | 64 GB |
| RAM slots | 2 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 2,000 GB | 2,000 GB |
| SSD (base) | 2,000 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 | 90 Wh |
| Power adapter | 380 W | 330 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 100 W | — |
| Design & cooling | ||
| Weight | 2.8 kg | 2.67 kg |
| Thickness | 31 mm | 30 mm |
| Width | 354 mm | 355 mm |
| Depth | 268 mm | 266 mm |
| Body material | Aluminium, Plastic | Aluminium |
| Colours | Black | Black |
| Cooling fans | 3 | 2 |
| Vapor chamber cooling | Yes | No |
| Liquid metal (CPU) | No | Yes |
| Fan noise (max. load) | 57.2 dB | 56 dB |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 5 | — |
| Thunderbolt or USB4 | Yes | No |
| 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 | 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 6 |
| Bluetooth | 5.4 | 5.2 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | No | Yes |
| Key travel | 1.7 mm | 1.7 mm |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | No |
| Fingerprint reader | No | Yes |
| Audio | ||
| Speakers | 4 speakers | 6 speakers |
| Dolby Atmos | Yes | Yes |
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