B300 vs RTX 5090
Comparing the B300 and RTX 5090 for cloud rental? The B300 is available from 0 providers starting at —, while the RTX 5090 starts at — across 0 providers. Below is a live breakdown of pricing, VRAM, compute throughput, and where to rent each GPU.
B300 vs RTX 5090 at a glance
Spec profile
Each axis is scaled to the stronger GPU — the outer edge is better.
Value for money
Live pricing for both GPUs is needed to compute value-for-money metrics. See the provider tables below for current rates.
Specs are manufacturer peak FP16 Tensor figures; real-world throughput varies by workload, precision, and software stack.
B300 vs RTX 5090 specs & pricing
| Specification | B300 | RTX 5090 |
|---|---|---|
| Cheapest price | — | — |
| VRAM | 288 GB | 32 GB |
| FP16 TFLOPS | 1100 | 419 |
| Memory bandwidth | 8000 GB/s | 1792 GB/s |
| Release year | 2025 | 2025 |
| Cloud providers | — | — |
Which should you choose?
- •B300 has more VRAM (288 GB), so it fits larger models and bigger batch sizes without sharding.
- •B300 offers higher FP16 throughput, training and serving faster on compute-bound workloads.
Provider availability
Frequently asked questions
How much VRAM do the B300 and RTX 5090 have?
The B300 has 288 GB of VRAM and the RTX 5090 has 32 GB. More VRAM lets you serve larger models and longer context windows on a single GPU.
Which is faster, the B300 or RTX 5090?
On paper the B300 is faster, with 1100 FP16 TFLOPS versus 419. Real-world speed also depends on memory bandwidth and software stack.
Live prices come from public provider catalogs and can change quickly. How we collect prices.
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