Nvidia RTX 3090 vs Nvidia RTX 4090

Nvidia RTX 3090 rents for 1.6x less per hour, but Nvidia RTX 4090 buys 1.4x more FP16 compute per dollar — the cheaper card is the dearer one per unit of work.

Prices and stock checked 0 minutes ago

Datasheet, side by side

Memory per GPUidentical
Memory bandwidth1.1x on the Nvidia RTX 4090
FP16 / BF16 dense2.3x on the Nvidia RTX 4090
Board power1.3x on the Nvidia RTX 3090

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 Nvidia RTX 4090
Cheapest listed $0.07 $0.11
Median across providers $0.16 $0.37
Most expensive listed $0.22 $0.49
Providers 3 6
Reporting stock 3 4
One month, 730 hours $49 $80

Frequently asked questions

Is the Nvidia RTX 3090 or the Nvidia RTX 4090 cheaper to rent?

The Nvidia RTX 3090 starts at $0.07 per GPU hour and the Nvidia RTX 4090 at $0.11. Nvidia RTX 3090 rents for 1.6x less per hour, but Nvidia RTX 4090 buys 1.4x more FP16 compute per dollar — the cheaper card is the dearer one per unit of work.

Which one can I actually get right now?

Nvidia RTX 3090: 3 of 3 providers report stock, cheapest in stock $0.07 at Vast.ai. Nvidia RTX 4090: 4 of 6 providers report stock, cheapest in stock $0.11 at Lium.

What does a month on each card cost?

Nvidia RTX 3090: $49 for 730 hours at its cheapest listed rate. Nvidia RTX 4090: $80 for 730 hours at its cheapest listed rate.