Nvidia A40 vs Nvidia RTX 4090

Nvidia RTX 4090 wins twice: it rents for 1.1x less per hour and still buys 1.2x more FP16 compute per dollar.

Prices and stock checked 2 hours ago

Datasheet, side by side

Memory per GPU2.0x on the Nvidia A40
Memory bandwidth1.5x on the Nvidia RTX 4090
FP16 / BF16 dense1.1x on the Nvidia RTX 4090
Board power1.5x on the Nvidia A40

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 A40 Nvidia RTX 4090
Cheapest listed $0.12 $0.11
Median across providers $0.73 $0.37
Most expensive listed $1.86 $0.49
Providers 4 6
Reporting stock 2 4
One month, 730 hours $88 $80

Frequently asked questions

Is the Nvidia A40 or the Nvidia RTX 4090 cheaper to rent?

The Nvidia A40 starts at $0.12 per GPU hour and the Nvidia RTX 4090 at $0.11. Nvidia RTX 4090 wins twice: it rents for 1.1x less per hour and still buys 1.2x more FP16 compute per dollar.

Which one can I actually get right now?

Nvidia A40: 2 of 4 providers report stock, cheapest in stock $0.35 at Runpod. 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 A40: $88 for 730 hours at its cheapest listed rate. Nvidia RTX 4090: $80 for 730 hours at its cheapest listed rate.