Asus ROG Strix G18 G815 RTX 5090 (2025) vs Gigabyte Aorus Master 18 RTX 5080 (2025)
What ROG Strix G18 G815 RTX 5090 (2025) does better (10) and where Aorus Master 18 RTX 5080 (2025) wins (11) — every spec side by side.
vs
9.6Graphics8.3
9.1Overall performance8.3
6.8Display8.8
5.1Memory & storage4.1
2.5Battery & portability6.3
8.1Features & cooling9.5
Dimensions
Size comparison
ROG Strix G18 G815 RTX 5090 (2025)Aorus Master 18 RTX 5080 (2025)
| ROG Strix G18 G815 RTX 5090 (2025) | Aorus Master 18 RTX 5080 (2025) | Difference | |
|---|---|---|---|
| Depth | 298 mm | 287 mm | +11 mm |
| Width | 399 mm | 401 mm | −2 mm |
| Thickness | 32 mm | 30 mm | +2 mm |
| Weight | 3.4 kg | 3.5 kg | −0.1 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix G18 G815 RTX 5090 (2025) better than Aorus Master 18 RTX 5080 (2025)?
- RAM (up to)64 GB vs 32 GB2×
- SSD (up to)4,096 GB vs 2,000 GB2×
- GPU compute (FP32)51.4 TFLOPS vs 42 TFLOPS+22%
- 3DMark Steel Nomad Light32,766 vs 28,453+15%
- Video memory24 GB vs 16 GB+50%
- GPU shader cores10,496 vs 7,680+37%
- Weight3.42 kg vs 3.5 kg+2%
- Liquid metal (CPU)Yes · Aorus Master 18 RTX 5080 (2025): No
- Response time3 ms vs 5 ms+67%
- Fan noise (max. load)49.7 dB vs 53 dB+7%
Why is Aorus Master 18 RTX 5080 (2025) better than ROG Strix G18 G815 RTX 5090 (2025)?
- Brightness500 nits vs 1,200 nits2.4×
- Panel typeIPS vs Mini-LED
- Battery capacity90 Wh vs 99 Wh+10%
- Advanced OptimusNo · ROG Strix G18 G815 RTX 5090 (2025): Yes
- RAM (base)16 GB vs 32 GB2×
- Max. supported RAM64 GB vs 128 GB2×
- SD card readerNo · ROG Strix G18 G815 RTX 5090 (2025): Yes
- SSD (base)1,024 GB vs 2,000 GB+95%
- Thickness32 mm vs 30 mm+7%
- M.2 SSD slots2 vs 3+50%
- Cooling fans3 vs 4+33%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5090 Laptop | GeForce RTX 5080 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 175 W |
| Video memory | 24 GB | 16 GB |
| Video memory type | GDDR7 | GDDR7 |
| GPU shader cores | 10,496 | 7,680 |
| GPU compute (FP32) | 51.4 TFLOPS | 42 TFLOPS |
| 3DMark Steel Nomad Light | 32,766 | 28,453 |
| Processor | ||
| Processor | Core Ultra 9 275HX | Core Ultra 9 275HX |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| CPU threads | 24 | 24 |
| Max CPU clock | 5.4 GHz | 5.4 GHz |
| Processor options | Ryzen 9 8940HX, Core Ultra 9 275HX, Ryzen 9 9955HX | Core Ultra 9 275HX |
| Geekbench 6 multi-core | 22,783 | 22,441 |
| Geekbench 6 single-core | 3,357 | 3,342 |
| Cinebench 2024 multi-core | 2,141 | 2,132 |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 2560 × 1600 | 2560 × 1600 |
| Resolution class | QHD (1440p/1600p) | QHD (1440p/1600p) |
| Refresh rate | 240 Hz | 240 Hz |
| Panel type | IPS | Mini-LED |
| Brightness | 500 nits | 1,200 nits |
| sRGB coverage | 100% | 100% |
| Response time | 3 ms | 5 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 | Yes |
| MUX switch | Yes | Yes |
| HDR | Yes | Yes |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 64 GB | 32 GB |
| RAM (base) | 16 GB | 32 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 5,600 MHz | 5,600 MHz |
| Max. supported RAM | 64 GB | 128 GB |
| RAM slots | 2 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 4,096 GB | 2,000 GB |
| SSD (base) | 1,024 GB | 2,000 GB |
| M.2 SSD slots | 2 | 3 |
| SSD interface | PCIe 4.0 x4 | PCIe 5.0 x4 |
| Battery & power | ||
| Battery capacity | 90 Wh | 99 Wh |
| Power adapter | 380 W | 400 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 100 W | — |
| Design & cooling | ||
| Weight | 3.42 kg | 3.5 kg |
| Thickness | 32 mm | 30 mm |
| Width | 399 mm | 401 mm |
| Depth | 298 mm | 287 mm |
| Body material | Plastic | Plastic |
| Colours | Black | Grey |
| Cooling fans | 3 | 4 |
| Vapor chamber cooling | Yes | Yes |
| Liquid metal (CPU) | Yes | No |
| Fan noise (max. load) | 49.7 dB | 53 dB |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 5 | Thunderbolt 4 |
| 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 | Yes |
| Ethernet | — | 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 7 |
| Bluetooth | 5.4 | 5.4 |
| Keyboard & camera | ||
| Keyboard backlight | — | Single-colour RGB |
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Key travel | 1.7 mm | 1.7 mm |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 2.0 | 2 speakers |
| Dolby Atmos | Yes | Yes |
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