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RTX 5080 16GB vs RTX 5090 32GB

The RTX 5090 32GB is about 28% faster at 1440p, and the RTX 5080 16GB costs about $2,340 less right now. For the money, the RTX 5080 16GB is the better buy.

Graphics card · better value

GeForce RTX 5080 16GB

$1,709
cheapest new: Gigabyte Windforce SFF at Scorptec · used about $1,210
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

Graphics card · faster

GeForce RTX 5090 32GB

$4,049
cheapest new: Zotac Solid at Amazon AU · used about $2,750
Video memory
32 GB
Power
575 W
Recommended power supply
1000 W
Power connector
12V-2x6
Card length
332–359 mm
Released
2025

Models: Zotac Solid, Gigabyte Gaming OC, MSI Gaming Trio OC, ASUS ROG Astral OC

Average frame rates

Estimated across demanding games at High settings, each tested with a Ryzen 7 9800X3D and 32 GB of DDR5-6000.

1080p
RTX 5080 16GB 182 fps
RTX 5090 32GB 198 fps
1440p
RTX 5080 16GB 147 fps
RTX 5090 32GB 188 fps
4K
RTX 5080 16GB 85 fps
RTX 5090 32GB 128 fps

Cost per frame at 1440p: RTX 5080 16GB $12 · RTX 5090 32GB $22

Game by game at 1440p

GameRTX 5080 16GBRTX 5090 32GBDifference
Cyberpunk 207790134RTX 5090 32GB +49%
Black Myth: Wukong76114RTX 5090 32GB +50%
Fortnite203250RTX 5090 32GB +23%
Counter-Strike 2427506RTX 5090 32GB +19%
Call of Duty: Black Ops 7162207RTX 5090 32GB +28%
Baldur’s Gate 3129155RTX 5090 32GB +20%

Which graphics card should you buy?

  • Better value: the RTX 5080 16GB costs less per frame ($12 vs $22 per fps at 1440p).
  • The RTX 5090 32GB has more video memory (32 GB vs 16 GB), which matters for 1440p and 4K with high textures.
  • The RTX 5080 16GB uses about 215 W less, so it runs cooler and quieter and can get by with a smaller power supply.

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.