Nvidia RTX 3080 vs Nvidia RTX 4090

Nvidia RTX 3080 wins twice: it rents for 4.0x less per hour and still buys 1.4x more FP16 compute per dollar.

Prices and stock checked 2 hours ago

Datasheet, side by side

Memory per GPU2.4x on the Nvidia RTX 4090
Memory bandwidth1.3x on the Nvidia RTX 4090
FP16 / BF16 dense2.8x on the Nvidia RTX 4090
Board power1.4x on the Nvidia RTX 3080

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 3080 Nvidia RTX 4090
Cheapest listed $0.03 $0.11
Median across providers $0.09 $0.37
Most expensive listed $0.17 $0.49
Providers 3 6
Reporting stock 2 4
One month, 730 hours $20 $80

Frequently asked questions

Is the Nvidia RTX 3080 or the Nvidia RTX 4090 cheaper to rent?

The Nvidia RTX 3080 starts at $0.03 per GPU hour and the Nvidia RTX 4090 at $0.11. Nvidia RTX 3080 wins twice: it rents for 4.0x less per hour and still buys 1.4x more FP16 compute per dollar.

Which one can I actually get right now?

Nvidia RTX 3080: 2 of 3 providers report stock, cheapest in stock $0.03 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 3080: $20 for 730 hours at its cheapest listed rate. Nvidia RTX 4090: $80 for 730 hours at its cheapest listed rate.