vs
9.1Graphics8.1
9.6Overall performance9.4
8.3Display7.8
5.1Memory & storage9.7
2.3Battery & portability5.2
7.5Features & cooling6.4
Dimensions
Size comparison
ROG Strix G18 G815 RTX 5090 (2026)Titan 18 HX AI RTX 5080 (2026)
| ROG Strix G18 G815 RTX 5090 (2026) | Titan 18 HX AI RTX 5080 (2026) | Difference | |
|---|---|---|---|
| Depth | 294 mm | 307.5 mm | −13.5 mm |
| Width | 399 mm | 404 mm | −5 mm |
| Thickness | 32 mm | 32 mm | = |
| Weight | 3.5 kg | 3.6 kg | −0.1 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix G18 G815 RTX 5090 (2026) better than Titan 18 HX AI RTX 5080 (2026)?
- Refresh rate300 Hz vs 120 Hz2.5×
- GPU compute (FP32)51.4 TFLOPS vs 42 TFLOPS+22%
- Video memory24 GB vs 16 GB+50%
- 3DMark Steel Nomad Light30,794 vs 28,044+10%
- GPU shader cores10,496 vs 7,680+37%
- Weight3.5 kg vs 3.6 kg+3%
- G-Sync / FreeSyncYes · Titan 18 HX AI RTX 5080 (2026): No
- Liquid metal (CPU)Yes · Titan 18 HX AI RTX 5080 (2026): No
- Dolby AtmosYes · Titan 18 HX AI RTX 5080 (2026): No
- Cooling fans3 vs 2+50%
Why is Titan 18 HX AI RTX 5080 (2026) better than ROG Strix G18 G815 RTX 5090 (2026)?
- RAM (up to)64 GB vs 128 GB2×
- SSD (up to)4,096 GB vs 12,288 GB3×
- Resolution classQHD (1440p/1600p) vs 4K (2160p/2400p)
- Panel typeIPS vs Mini-LED
- Brightness500 nits vs 1,000 nits2×
- Battery capacity90 Wh vs 100 Wh+11%
- RAM (base)16 GB vs 32 GB2×
- Max. supported RAM64 GB vs 128 GB2×
- M.2 SSD slots2 vs 42×
- SD card readerNo · ROG Strix G18 G815 RTX 5090 (2026): Yes
- Cinebench 2024 multi-core2,626 vs 2,685+2%
- Pixel density168 ppi vs 252 ppi+50%
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 | 30,794 | 28,044 |
| Processor | ||
| Processor | Core Ultra 9 290HX Plus | Core Ultra 9 290HX Plus |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| CPU threads | 24 | 24 |
| Max CPU clock | 5.5 GHz | 5.5 GHz |
| Processor options | Core Ultra 9 290HX Plus | Core Ultra 9 290HX Plus |
| Geekbench 6 multi-core | 23,356 | 23,802 |
| Geekbench 6 single-core | 3,484 | 3,542 |
| Cinebench 2024 multi-core | 2,626 | 2,685 |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 2560 × 1600 | 3840 × 2400 |
| Resolution class | QHD (1440p/1600p) | 4K (2160p/2400p) |
| Refresh rate | 300 Hz | 120 Hz |
| Panel type | IPS | Mini-LED |
| Brightness | 500 nits | 1,000 nits |
| sRGB coverage | 100% | — |
| Response time | 3 ms | — |
| DCI-P3 coverage | 100% | 100% |
| Pixel density | 168 ppi | 252 ppi |
| Aspect ratio | 16:10 | 16:10 |
| G-Sync / FreeSync | Yes | No |
| Advanced Optimus | No | No |
| MUX switch | Yes | Yes |
| HDR | Yes | Yes |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 64 GB | 128 GB |
| RAM (base) | 16 GB | 32 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 5,600 MHz | 7,200 MHz |
| Max. supported RAM | 64 GB | 128 GB |
| RAM slots | 2 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 4,096 GB | 12,288 GB |
| SSD (base) | 1,024 GB | 1,024 GB |
| M.2 SSD slots | 2 | 4 |
| SSD interface | PCIe 4.0 x4 | PCIe 5.0 x4 |
| Battery & power | ||
| Battery capacity | 90 Wh | 100 Wh |
| Power adapter | 380 W | 400 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 100 W | 140 W |
| Design & cooling | ||
| Weight | 3.5 kg | 3.6 kg |
| Thickness | 32 mm | 32 mm |
| Width | 399 mm | 404 mm |
| Depth | 294 mm | 307.5 mm |
| Body material | Plastic | Aluminium |
| Colours | Gray, Green | Black |
| Cooling fans | 3 | 2 |
| Vapor chamber cooling | Yes | Yes |
| Liquid metal (CPU) | Yes | No |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 5 | Thunderbolt 5 |
| 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 | No |
| 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 | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Key travel | 1.7 mm | — |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 2.0 | 4.2 |
| Dolby Atmos | Yes | No |
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