Nvidia B300 vs Nvidia RTX 4090

Nvidia RTX 4090 wins twice: it rents for 53.5x less per hour and still buys 3.9x more FP16 compute per dollar.

Prices and stock checked 2 hours ago

Datasheet, side by side

Memory per GPU12.0x on the Nvidia B300
Memory bandwidth7.9x on the Nvidia B300
FP16 / BF16 dense13.6x on the Nvidia B300
FP8 dense13.6x on the Nvidia B300
Board power2.4x on the Nvidia RTX 4090

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 B300 Nvidia RTX 4090
Cheapest listed $5.88 $0.11
Median across providers $7.71 $0.37
Most expensive listed $9.69 $0.49
Providers 5 6
Reporting stock 3 4
One month, 730 hours $4,292 $80

Frequently asked questions

Is the Nvidia B300 or the Nvidia RTX 4090 cheaper to rent?

The Nvidia B300 starts at $5.88 per GPU hour and the Nvidia RTX 4090 at $0.11. Nvidia RTX 4090 wins twice: it rents for 53.5x less per hour and still buys 3.9x more FP16 compute per dollar.

Which one can I actually get right now?

Nvidia B300: 3 of 5 providers report stock, cheapest in stock $5.88 at Lium. 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 B300: $4,292 for 730 hours at its cheapest listed rate. Nvidia RTX 4090: $80 for 730 hours at its cheapest listed rate.