Acer Predator Helios 18 AI RTX 5080 (2026) vs Asus ROG Strix G18 G815 RTX 5090 (2026)
What Predator Helios 18 AI RTX 5080 (2026) does better (12) and where ROG Strix G18 G815 RTX 5090 (2026) wins (9) — every spec side by side.
vs
6.9Graphics9.1
9.0Overall performance9.6
9.5Display8.3
9.6Memory & storage5.1
6.6Battery & portability2.3
6.9Features & cooling7.5
Dimensions
Size comparison
Predator Helios 18 AI RTX 5080 (2026)ROG Strix G18 G815 RTX 5090 (2026)
| Predator Helios 18 AI RTX 5080 (2026) | ROG Strix G18 G815 RTX 5090 (2026) | Difference | |
|---|---|---|---|
| Depth | 307.9 mm | 294 mm | +13.9 mm |
| Width | 401 mm | 399 mm | +2 mm |
| Thickness | 29.6 mm | 32 mm | −2.4 mm |
| Weight | 3.5 kg | 3.5 kg | = |
Drawn to the same scale from the official dimensions (front and side).
Why is Predator Helios 18 AI RTX 5080 (2026) better than ROG Strix G18 G815 RTX 5090 (2026)?
- RAM (up to)192 GB vs 64 GB3×
- Panel typeMini-LED vs IPS
- Brightness1,000 nits vs 500 nits2×
- SSD (up to)8,192 GB vs 4,096 GB2×
- Battery capacity100 Wh vs 90 Wh+11%
- Max. supported RAM192 GB vs 64 GB3×
- Advanced OptimusYes · ROG Strix G18 G815 RTX 5090 (2026): No
- SD card readerYes · ROG Strix G18 G815 RTX 5090 (2026): No
- Thickness29.6 mm vs 32 mm+8%
- M.2 SSD slots3 vs 2+50%
- USB-C charging power140 W vs 100 W+40%
- RAM speed6,400 MHz vs 5,600 MHz+14%
Why is ROG Strix G18 G815 RTX 5090 (2026) better than Predator Helios 18 AI RTX 5080 (2026)?
- GPU compute (FP32)42 TFLOPS vs 51.4 TFLOPS+22%
- 3DMark Steel Nomad Light25,580 vs 30,794+20%
- Refresh rate250 Hz vs 300 Hz+20%
- Video memory16 GB vs 24 GB+50%
- GPU shader cores7,680 vs 10,496+37%
- Vapor chamber coolingNo · Predator Helios 18 AI RTX 5080 (2026): Yes
- Dolby AtmosNo · Predator Helios 18 AI RTX 5080 (2026): Yes
- Cooling fans2 vs 3+50%
- Geekbench 6 single-core3,411 vs 3,484+2%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 5080 Laptop | GeForce RTX 5090 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 175 W |
| Video memory | 16 GB | 24 GB |
| Video memory type | GDDR7 | GDDR7 |
| GPU shader cores | 7,680 | 10,496 |
| GPU compute (FP32) | 42 TFLOPS | 51.4 TFLOPS |
| 3DMark Steel Nomad Light | 25,580 | 30,794 |
| 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 | 23,284 | 23,356 |
| Geekbench 6 single-core | 3,411 | 3,484 |
| Cinebench 2024 multi-core | 2,608 | 2,626 |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 2560 × 1600 | 2560 × 1600 |
| Resolution class | QHD (1440p/1600p) | QHD (1440p/1600p) |
| Refresh rate | 250 Hz | 300 Hz |
| Panel type | Mini-LED | IPS |
| Brightness | 1,000 nits | 500 nits |
| sRGB coverage | 100% | 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 | Yes | No |
| MUX switch | Yes | Yes |
| HDR | Yes | Yes |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 192 GB | 64 GB |
| RAM (base) | 16 GB | 16 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 6,400 MHz | 5,600 MHz |
| Max. supported RAM | 192 GB | 64 GB |
| RAM slots | 4 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 8,192 GB | 4,096 GB |
| SSD (base) | 1,024 GB | 1,024 GB |
| M.2 SSD slots | 3 | 2 |
| SSD interface | PCIe 5.0 x4 | PCIe 4.0 x4 |
| Battery & power | ||
| Battery capacity | 100 Wh | 90 Wh |
| Power adapter | 400 W | 380 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 140 W | 100 W |
| Design & cooling | ||
| Weight | 3.5 kg | 3.5 kg |
| Thickness | 29.6 mm | 32 mm |
| Width | 401 mm | 399 mm |
| Depth | 307.9 mm | 294 mm |
| Body material | Aluminium, Plastic | Plastic |
| Colours | Blue | Gray, Green |
| Cooling fans | 2 | 3 |
| Vapor chamber cooling | No | Yes |
| Liquid metal (CPU) | Yes | Yes |
| Fan noise (max. load) | 50.3 dB | — |
| 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 | Yes | No |
| 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 |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 6.0 | 2.0 |
| Dolby Atmos | No | Yes |
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