Acer Predator Helios 18 AI PH18-73 RTX 5080 (2025) vs Acer Predator Helios 18 AI RTX 5090 (2025)
What Predator Helios 18 AI PH18-73 RTX 5080 (2025) does better (3) and where Predator Helios 18 AI RTX 5090 (2025) wins (6) — every spec side by side.
vs
7.5Graphics9.3
8.7Overall performance9.2
9.5Display9.5
8.4Memory & storage9.6
8.8Battery & portability8.0
6.9Features & cooling6.9
Dimensions
Size comparison
Predator Helios 18 AI PH18-73 RTX 5080 (2025)Predator Helios 18 AI RTX 5090 (2025)
| Predator Helios 18 AI PH18-73 RTX 5080 (2025) | Predator Helios 18 AI RTX 5090 (2025) | Difference | |
|---|---|---|---|
| Depth | 312 mm | 307.9 mm | +4.1 mm |
| Width | 404 mm | 401 mm | +3 mm |
| Thickness | 29 mm | 29.6 mm | −0.6 mm |
| Weight | 3.2 kg | 3.2 kg | = |
Drawn to the same scale from the official dimensions (front and side).
Why is Predator Helios 18 AI PH18-73 RTX 5080 (2025) better than Predator Helios 18 AI RTX 5090 (2025)?
- RAM (base)128 GB vs 16 GB8×
- SSD (base)2,000 GB vs 1,024 GB+95%
- Thickness29 mm vs 29.6 mm+2%
Why is Predator Helios 18 AI RTX 5090 (2025) better than Predator Helios 18 AI PH18-73 RTX 5080 (2025)?
- SSD (up to)2,000 GB vs 8,192 GB4.1×
- RAM (up to)128 GB vs 192 GB+50%
- GPU compute (FP32)42 TFLOPS vs 51.4 TFLOPS+22%
- 3DMark Steel Nomad Light27,150 vs 31,590+16%
- Video memory16 GB vs 24 GB+50%
- GPU shader cores7,680 vs 10,496+37%
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 | 27,150 | 31,590 |
| 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 | Core Ultra 9 275HX | Core Ultra 9 275HX |
| Geekbench 6 multi-core | 22,453 | 22,453 |
| Geekbench 6 single-core | 3,306 | 3,306 |
| Cinebench 2024 multi-core | 2,147 | 2,147 |
| Display | ||
| Screen size | 18″ | 18″ |
| Resolution | 2560 × 1600 | 2560 × 1600 |
| Resolution class | QHD (1440p/1600p) | QHD (1440p/1600p) |
| Refresh rate | 250 Hz | 250 Hz |
| Panel type | Mini-LED | Mini-LED |
| Brightness | 1,000 nits | 1,000 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 | Yes |
| MUX switch | Yes | Yes |
| HDR | Yes | Yes |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 128 GB | 192 GB |
| RAM (base) | 128 GB | 16 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 6,400 MHz | 6,400 MHz |
| Max. supported RAM | 192 GB | 192 GB |
| RAM slots | 4 | 4 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 2,000 GB | 8,192 GB |
| SSD (base) | 2,000 GB | 1,024 GB |
| M.2 SSD slots | 3 | 3 |
| SSD interface | PCIe 5.0 x4 | PCIe 5.0 x4 |
| Battery & power | ||
| Battery capacity | 100 Wh | 99 Wh |
| Power adapter | 400 W | 330 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | 140 W | 140 W |
| Design & cooling | ||
| Weight | 3.2 kg | 3.2 kg |
| Thickness | 29 mm | 29.6 mm |
| Width | 404 mm | 401 mm |
| Depth | 312 mm | 307.9 mm |
| Body material | Aluminium, Plastic | Aluminium, Plastic |
| Colours | Black | Blue |
| Cooling fans | 2 | 2 |
| Vapor chamber cooling | No | No |
| Liquid metal (CPU) | Yes | Yes |
| Fan noise (max. load) | 50.3 dB | 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 | Yes |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.3 | 5.4 |
| Keyboard & camera | ||
| Keyboard backlight | Single-colour RGB | — |
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 6.0 | 6.0 |
| Dolby Atmos | No | No |
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