RTX 4090 24GB vs RTX 5080 16GB
The RTX 4090 24GB is about 13% faster at 1440p, and the RTX 5080 16GB costs about $270 less right now.
GeForce RTX 4090 24GB
- Video memory
- 24 GB
- Power
- 450 W
- Recommended power supply
- 850 W
- Power connector
- 12V-2x6
- Card length
- 337–348 mm
- Released
- 2022
Models: ASUS TUF Gaming OC, MSI Gaming X Trio, Gigabyte Gaming OC
GeForce RTX 5080 16GB
- Video memory
- 16 GB
- Power
- 360 W
- Recommended power supply
- 850 W
- Power connector
- 12V-2x6
- Card length
- 303–360 mm
- Released
- 2025
Models: MSI Ventus 3X OC, Gigabyte Windforce SFF, Zotac Solid OC, ASUS TUF Gaming OC, Gigabyte Aorus Master, MSI Gaming Trio OC
Average frame rates
Estimated across demanding games at High settings, each tested with a Ryzen 7 9800X3D and 32 GB of DDR5-6000.
Cost per frame at 1440p: RTX 4090 24GB $12 · RTX 5080 16GB $12
Game by game at 1440p
| Game | RTX 4090 24GB | RTX 5080 16GB | Difference |
|---|---|---|---|
| Cyberpunk 2077 | 106 | 90 | RTX 4090 24GB +18% |
| Black Myth: Wukong | 88 | 76 | RTX 4090 24GB +16% |
| Fortnite | 226 | 203 | RTX 4090 24GB +11% |
| Counter-Strike 2 | 468 | 427 | RTX 4090 24GB +10% |
| Call of Duty: Black Ops 7 | 182 | 162 | RTX 4090 24GB +12% |
| Baldur’s Gate 3 | 142 | 129 | RTX 4090 24GB +10% |
Which graphics card should you buy?
- The RTX 4090 24GB has more video memory (24 GB vs 16 GB), which matters for 1440p and 4K with high textures.
- The RTX 5080 16GB uses about 90 W less, so it runs cooler and quieter and can get by with a smaller power supply.
- The RTX 4090 24GB is no longer sold new — it’s a second-hand buy at around $1,979.
Check either card with your processor in the bottleneck checker, or try it in a full build in the builder.
Related comparisons
Frame rates are Rigsmith estimates from its performance indices, not measured benchmarks. Prices are the cheapest in-stock new price at Australian stores as of 12/11/2026, including GST.