Asus ROG Strix G18 G815 RTX 5080 (2025) vs MSI Crosshair 18 HX AI A2 RTX 5070 (2025)
What ROG Strix G18 G815 RTX 5080 (2025) does better (19) and where Crosshair 18 HX AI A2 RTX 5070 (2025) wins (6) — every spec side by side.
vs
7.7Graphics4.2
8.3Overall performance5.7
8.6Display5.4
4.0Memory & storage8.0
3.0Battery & portability5.5
8.3Features & cooling2.1
Dimensions
Size comparison
ROG Strix G18 G815 RTX 5080 (2025)Crosshair 18 HX AI A2 RTX 5070 (2025)
| ROG Strix G18 G815 RTX 5080 (2025) | Crosshair 18 HX AI A2 RTX 5070 (2025) | Difference | |
|---|---|---|---|
| Depth | 298 mm | 280 mm | +18 mm |
| Width | 399 mm | 404 mm | −5 mm |
| Thickness | 32 mm | 30 mm | +2 mm |
| Weight | 3.2 kg | 3.1 kg | +0.1 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix G18 G815 RTX 5080 (2025) better than Crosshair 18 HX AI A2 RTX 5070 (2025)?
- GPU power (TGP)175 W vs 115 W+52%
- 3DMark Steel Nomad Light27,302 vs 15,580+75%
- GPU compute (FP32)42 TFLOPS vs 26.2 TFLOPS+60%
- Video memory16 GB vs 8 GB2×
- Panel typeMini-LED vs IPS
- GPU shader cores7,680 vs 4,608+67%
- Ethernet5 Gbit/s vs 1 Gbit/s5×
- G-Sync / FreeSyncYes · Crosshair 18 HX AI A2 RTX 5070 (2025): No
- HDRYes · Crosshair 18 HX AI A2 RTX 5070 (2025): No
- Vapor chamber coolingYes · Crosshair 18 HX AI A2 RTX 5070 (2025): No
- Liquid metal (CPU)Yes · Crosshair 18 HX AI A2 RTX 5070 (2025): No
- USB-C ports2 vs 12×
Why is Crosshair 18 HX AI A2 RTX 5070 (2025) better than ROG Strix G18 G815 RTX 5080 (2025)?
- SSD (up to)1,000 GB vs 8,000 GB8×
- RAM (up to)64 GB vs 96 GB+50%
- Weight3.2 kg vs 3.1 kg+3%
- Advanced OptimusNo · ROG Strix G18 G815 RTX 5080 (2025): Yes
- Thickness32 mm vs 30 mm+7%
- Max. supported RAM64 GB vs 96 GB+50%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5080 Laptop | GeForce RTX 5070 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 115 W |
| Video memory | 16 GB | 8 GB |
| Video memory type | GDDR7 | GDDR7 |
| GPU shader cores | 7,680 | 4,608 |
| GPU compute (FP32) | 42 TFLOPS | 26.2 TFLOPS |
| 3DMark Steel Nomad Light | 27,302 | 15,580 |
| Processor | ||
| Processor | Core Ultra 9 290HX Plus | Core Ultra 9 275HX |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| CPU threads | — | 24 |
| Max CPU clock | 5.5 GHz | 5.4 GHz |
| Processor options | Ryzen 9 8940HX, Core Ultra 9 275HX, Ryzen 9 9955HX | Core Ultra 9 275HX |
| Geekbench 6 multi-core | — | 21,832 |
| Geekbench 6 single-core | — | 3,163 |
| Cinebench 2024 multi-core | — | 2,086 |
| 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 | Mini-LED | IPS |
| Brightness | 500 nits | 500 nits |
| sRGB coverage | 100% | 100% |
| Response time | 3 ms | 3 ms |
| DCI-P3 coverage | 100% | 98% |
| Pixel density | 168 ppi | 168 ppi |
| Aspect ratio | 16:10 | 16:10 |
| G-Sync / FreeSync | Yes | No |
| Advanced Optimus | No | Yes |
| MUX switch | Yes | Yes |
| HDR | Yes | No |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 64 GB | 96 GB |
| RAM (base) | 32 GB | 32 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 5,600 MHz | 5,600 MHz |
| Max. supported RAM | 64 GB | 96 GB |
| RAM slots | 2 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 1,000 GB | 8,000 GB |
| SSD (base) | 1,000 GB | 1,000 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 | 240 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 100 W | 100 W |
| Design & cooling | ||
| Weight | 3.2 kg | 3.1 kg |
| Thickness | 32 mm | 30 mm |
| Width | 399 mm | 404 mm |
| Depth | 298 mm | 280 mm |
| Body material | Plastic | Plastic |
| Colours | Green | Black |
| Cooling fans | 3 | 2 |
| Vapor chamber cooling | Yes | No |
| Liquid metal (CPU) | Yes | No |
| Fan noise (max. load) | 49.7 dB | 58.6 dB |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 5 | Thunderbolt 4 |
| Thunderbolt or USB4 | Yes | Yes |
| USB-C ports | 2 | 1 |
| USB-A ports | 3 | 3 |
| HDMI | HDMI 2.1 | HDMI 2.1 |
| HDMI 2.1 | Yes | Yes |
| (Mini) DisplayPort | No | No |
| Ethernet | 5 Gbit/s | 1 Gbit/s |
| Ethernet port | Yes | Yes |
| SD card reader | No | No |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 7 | Wi-Fi 6E |
| Bluetooth | 5.4 | 5.3 |
| Keyboard & camera | ||
| Keyboard backlight | — | Zone RGB |
| Per-key RGB | — | No |
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Key travel | 1.7 mm | — |
| Webcam | 1,080p | 720p |
| IR camera (face login) | Yes | No |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 2.0 | 2 speakers |
| Dolby Atmos | Yes | No |
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