Asus ROG Strix G16 G615 RTX 5080 (2026) vs Asus ROG Zephyrus Duo 16 GX651 RTX 5090 (2026)
What ROG Strix G16 G615 RTX 5080 (2026) does better (12) and where ROG Zephyrus Duo 16 GX651 RTX 5090 (2026) wins (12) — every spec side by side.
vs
9.4Graphics9.1
9.8Overall performance9.0
9.4Display9.0
8.6Memory & storage8.0
3.8Battery & portability4.9
9.7Features & cooling9.7
Dimensions
Size comparison
ROG Strix G16 G615 RTX 5080 (2026)ROG Zephyrus Duo 16 GX651 RTX 5090 (2026)
| ROG Strix G16 G615 RTX 5080 (2026) | ROG Zephyrus Duo 16 GX651 RTX 5090 (2026) | Difference | |
|---|---|---|---|
| Depth | 268 mm | 246 mm | +22 mm |
| Width | 354 mm | 355 mm | −1 mm |
| Thickness | 30.8 mm | 24.9 mm | +5.9 mm |
| Weight | 2.6 kg | 2.8 kg | −0.2 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix G16 G615 RTX 5080 (2026) better than ROG Zephyrus Duo 16 GX651 RTX 5090 (2026)?
- Refresh rate300 Hz vs 120 Hz2.5×
- GPU power (TGP)175 W vs 135 W+30%
- Cinebench 2024 multi-core2,576 vs 1,2832×
- Geekbench 6 multi-core22,730 vs 17,133+33%
- CPU cores24 vs 16+50%
- Weight2.65 kg vs 2.82 kg+6%
- Upgradable RAMYes · ROG Zephyrus Duo 16 GX651 RTX 5090 (2026): No
- CPU threads24 vs 16+50%
- Cooling fans3 vs 2+50%
- USB-A ports3 vs 2+50%
- Geekbench 6 single-core3,439 vs 2,952+16%
- Max CPU clock5.5 GHz vs 4.9 GHz+12%
Why is ROG Zephyrus Duo 16 GX651 RTX 5090 (2026) better than ROG Strix G16 G615 RTX 5080 (2026)?
- Resolution classQHD (1440p/1600p) vs 3K (1800p/2000p)
- Panel typeIPS vs OLED
- Video memory16 GB vs 24 GB+50%
- Response time3 ms vs 1 ms3×
- 3DMark Steel Nomad Light25,789 vs 26,964+5%
- GPU shader cores7,680 vs 10,496+37%
- Thickness30.8 mm vs 24.9 mm+24%
- RAM typeDDR5 vs LPDDR5X
- SD card readerNo · ROG Strix G16 G615 RTX 5080 (2026): Yes
- RAM speed5,600 MHz vs 8,533 MHz+52%
- Pixel density189 ppi vs 212 ppi+12%
- Bluetooth5.4 vs 6+11%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5080 Laptop | GeForce RTX 5090 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 135 W |
| Video memory | 16 GB | 24 GB |
| Video memory type | GDDR7 | GDDR7 |
| GPU shader cores | 7,680 | 10,496 |
| GPU compute (FP32) | 42 TFLOPS | 41.6 TFLOPS |
| 3DMark Steel Nomad Light | 25,789 | 26,964 |
| Processor | ||
| Processor | Core Ultra 9 290HX Plus | Core Ultra 9 386H |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 16 |
| CPU threads | 24 | 16 |
| Max CPU clock | 5.5 GHz | 4.9 GHz |
| Processor options | Core Ultra 9 290HX Plus | Core Ultra 9 386H |
| Geekbench 6 multi-core | 22,730 | 17,133 |
| Geekbench 6 single-core | 3,439 | 2,952 |
| Cinebench 2024 multi-core | 2,576 | 1,283 |
| Display | ||
| Screen size | 16″ | 16″ |
| Resolution | 2560 × 1600 | 2880 × 1800 |
| Resolution class | QHD (1440p/1600p) | 3K (1800p/2000p) |
| Refresh rate | 300 Hz | 120 Hz |
| Panel type | IPS | OLED |
| Brightness | 500 nits | 500 nits |
| sRGB coverage | 100% | 100% |
| Response time | 3 ms | 1 ms |
| DCI-P3 coverage | 100% | 100% |
| Pixel density | 189 ppi | 212 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 | Yes |
| Memory & storage | ||
| RAM (up to) | 64 GB | 64 GB |
| RAM (base) | 16 GB | 16 GB |
| RAM type | DDR5 | LPDDR5X |
| RAM speed | 5,600 MHz | 8,533 MHz |
| Max. supported RAM | 64 GB | 64 GB |
| RAM slots | 2 | — |
| Upgradable RAM | Yes | No |
| SSD (up to) | 4,096 GB | 4,096 GB |
| SSD (base) | 1,024 GB | 1,024 GB |
| M.2 SSD slots | 2 | 2 |
| SSD interface | PCIe 4.0 x4 | PCIe 5.0 x4 |
| Battery & power | ||
| Battery capacity | 90 Wh | 90 Wh |
| Power adapter | 380 W | 250 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 100 W | 100 W |
| Design & cooling | ||
| Weight | 2.65 kg | 2.82 kg |
| Thickness | 30.8 mm | 24.9 mm |
| Width | 354 mm | 355 mm |
| Depth | 268 mm | 246 mm |
| Body material | Plastic | Aluminium |
| Colours | Gray, Green | Gray |
| Cooling fans | 3 | 2 |
| Vapor chamber cooling | Yes | Yes |
| Liquid metal (CPU) | No | No |
| Fan noise (max. load) | — | 54.1 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 | No |
| SD card reader | No | Yes |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.4 | 6 |
| Keyboard & camera | ||
| Keyboard backlight | — | Single-colour RGB |
| Backlit keyboard | Yes | Yes |
| Numeric keypad | No | No |
| Key travel | — | 1.7 mm |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 2.0 | 2.4 |
| Dolby Atmos | Yes | Yes |
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