Nvidia RTX 3090 Ti vs Nvidia RTX 5080

Nvidia RTX 5080 wins twice: it rents for 1.1x less per hour and still buys 1.5x more FP16 compute per dollar.

Prices and stock checked 1 minute ago

Datasheet, side by side

Memory per GPU1.5x on the Nvidia RTX 3090 Ti
Memory bandwidth1.1x on the Nvidia RTX 3090 Ti
FP16 / BF16 dense1.4x on the Nvidia RTX 5080
Board power1.3x on the Nvidia RTX 5080

Figures are the vendors' own published numbers, dense rates without sparsity. A bar is drawn only where both cards publish the same figure.

Price, side by side

Metric Nvidia RTX 3090 Ti Nvidia RTX 5080
Cheapest listed $0.16 $0.15
Median across providers $0.22 $0.16
Most expensive listed $0.27 $0.39
Providers 2 3
Reporting stock 1 2
One month, 730 hours $117 $110

Frequently asked questions

Is the Nvidia RTX 3090 Ti or the Nvidia RTX 5080 cheaper to rent?

The Nvidia RTX 3090 Ti starts at $0.16 per GPU hour and the Nvidia RTX 5080 at $0.15. Nvidia RTX 5080 wins twice: it rents for 1.1x less per hour and still buys 1.5x more FP16 compute per dollar.

Which one can I actually get right now?

Nvidia RTX 3090 Ti: 1 of 2 providers report stock, cheapest in stock $0.27 at Runpod. Nvidia RTX 5080: 2 of 3 providers report stock, cheapest in stock $0.16 at Vast.ai.

What does a month on each card cost?

Nvidia RTX 3090 Ti: $117 for 730 hours at its cheapest listed rate. Nvidia RTX 5080: $110 for 730 hours at its cheapest listed rate.