Asus ROG Strix G18 G814 RTX 4080 (2024) vs Asus ROG Strix G18 G815 RTX 5080 (2025)
What ROG Strix G18 G814 RTX 4080 (2024) does better (5) and where ROG Strix G18 G815 RTX 5080 (2025) wins (13) — every spec side by side.
vs
6.8Graphics7.7
7.0Overall performance8.3
7.3Display8.6
3.7Memory & storage4.0
6.0Battery & portability3.0
3.4Features & cooling8.3
Dimensions
Size comparison
ROG Strix G18 G814 RTX 4080 (2024)ROG Strix G18 G815 RTX 5080 (2025)
| ROG Strix G18 G814 RTX 4080 (2024) | ROG Strix G18 G815 RTX 5080 (2025) | Difference | |
|---|---|---|---|
| Depth | 294 mm | 298 mm | −4 mm |
| Width | 399 mm | 399 mm | = |
| Thickness | 30.8 mm | 32 mm | −1.2 mm |
| Weight | 3 kg | 3.2 kg | −0.2 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Strix G18 G814 RTX 4080 (2024) better than ROG Strix G18 G815 RTX 5080 (2025)?
- SSD (up to)4,096 GB vs 1,000 GB4.1×
- Weight3 kg vs 3.2 kg+7%
- Thickness30.8 mm vs 32 mm+4%
- Max CPU clock5.8 GHz vs 5.5 GHz+5%
- SSD (base)1,024 GB vs 1,000 GB+2%
Why is ROG Strix G18 G815 RTX 5080 (2025) better than ROG Strix G18 G814 RTX 4080 (2024)?
- RAM (up to)32 GB vs 64 GB2×
- Panel typeIPS vs Mini-LED
- 3DMark Steel Nomad Light23,310 vs 27,302+17%
- GPU compute (FP32)37.6 TFLOPS vs 42 TFLOPS+12%
- Video memory12 GB vs 16 GB+33%
- RAM (base)16 GB vs 32 GB2×
- Max. supported RAM32 GB vs 64 GB2×
- Vapor chamber coolingNo · ROG Strix G18 G814 RTX 4080 (2024): Yes
- IR camera (face login)No · ROG Strix G18 G814 RTX 4080 (2024): Yes
- Wi-Fi standardWi-Fi 6E vs Wi-Fi 7+8%
- GPU shader cores7,424 vs 7,680+3%
- USB-A ports2 vs 3+50%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 4080 Laptop | GeForce RTX 5080 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 175 W |
| Video memory | 12 GB | 16 GB |
| Video memory type | GDDR6 | GDDR7 |
| GPU shader cores | 7,424 | 7,680 |
| GPU compute (FP32) | 37.6 TFLOPS | 42 TFLOPS |
| 3DMark Steel Nomad Light | 23,310 | 27,302 |
| Processor | ||
| Processor | Core i9-14900HX | Core Ultra 9 290HX Plus |
| CPU maker | Intel | Intel |
| CPU cores | 24 | 24 |
| CPU threads | 32 | — |
| Max CPU clock | 5.8 GHz | 5.5 GHz |
| Processor options | Core i9-14900HX | Ryzen 9 8940HX, Core Ultra 9 275HX, Ryzen 9 9955HX |
| Geekbench 6 multi-core | 20,163 | — |
| Geekbench 6 single-core | 3,329 | — |
| Cinebench 2024 multi-core | 1,971 | — |
| 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 | 500 nits |
| sRGB coverage | — | 100% |
| Response time | 3 ms | 3 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 | No |
| MUX switch | Yes | Yes |
| HDR | Yes | Yes |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 32 GB | 64 GB |
| RAM (base) | 16 GB | 32 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 5,600 MHz | 5,600 MHz |
| Max. supported RAM | 32 GB | 64 GB |
| RAM slots | 2 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 4,096 GB | 1,000 GB |
| SSD (base) | 1,024 GB | 1,000 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 | 330 W | 380 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | — | 100 W |
| Design & cooling | ||
| Weight | 3 kg | 3.2 kg |
| Thickness | 30.8 mm | 32 mm |
| Width | 399 mm | 399 mm |
| Depth | 294 mm | 298 mm |
| Body material | — | Plastic |
| Colours | Black | Green |
| Cooling fans | 3 | 3 |
| Vapor chamber cooling | No | Yes |
| Liquid metal (CPU) | Yes | Yes |
| Fan noise (max. load) | — | 49.7 dB |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 4 | Thunderbolt 5 |
| Thunderbolt or USB4 | Yes | Yes |
| USB-C ports | 2 | 2 |
| USB-A ports | 2 | 3 |
| HDMI | HDMI 2.1 | HDMI 2.1 |
| HDMI 2.1 | Yes | Yes |
| (Mini) DisplayPort | No | No |
| Ethernet | — | 5 Gbit/s |
| Ethernet port | Yes | Yes |
| SD card reader | No | No |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 6E | Wi-Fi 7 |
| Bluetooth | 5.3 | 5.4 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Key travel | — | 1.7 mm |
| Webcam | 720p | 1,080p |
| IR camera (face login) | No | Yes |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 2.2 | 2.0 |
| Dolby Atmos | Yes | Yes |
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