GPU comparison
B300 vs GB300 NVL72: specs and rental prices
NVIDIA B300 against NVIDIA GB300 NVL72: 270 GB against 279 GB of memory, lowest listed on-demand price $7.40 against $18.00 per GPU-hour. Specs from NVIDIA, prices as of Oct 25, 2026.
In short
- The GB300 NVL72 lists 279 GB of GPU memory against 270 GB for the B300: 1.03× higher.
- Memory type is HBM3E on the B300 and HBM3E on the GB300 NVL72.
- The GB300 NVL72 lists 8,000 GB/s of memory bandwidth against 7,700 GB/s for the B300: 1.04× higher.
- The GB300 NVL72 lists 5,000 TFLOPS of FP16 / BF16 tensor throughput against 4,500 TFLOPS for the B300: 1.11× higher.
- Maximum power is listed at 1,100 W for the B300 and 1,400 W for the GB300 NVL72.
- The lowest listed on-demand price is $7.40 per GPU-hour for the B300 (Hyperstack) and $18.00 for the GB300 NVL72 (Oracle Cloud).
- Per GB of GPU memory that is $0.027 per hour for the B300 and $0.065 for the GB300 NVL72.
This summary is generated from the tables below. Prices were last checked Oct 25, 2026. A listing not re-checked for 7 days is greyed and left out of every lowest-price figure; after 14 days it is removed from the page.
Specifications side by side
| Specification | B300, per GPU (HGX B300) | Per Blackwell Ultra GPU in GB300 NVL72 | Difference |
|---|---|---|---|
| GPU memory | 270 GB | 279 GB | GB300 NVL72 1.03× higher |
| Memory type | HBM3E | HBM3E | Same |
| Memory bandwidth | 7,700 GB/s | 8,000 GB/s | GB300 NVL72 1.04× higher |
| FP8 tensor throughput, with sparsity | 9,000 TFLOPS | 10,000 TFLOPS | GB300 NVL72 1.11× higher |
| FP16 / BF16 tensor throughput, with sparsity | 4,500 TFLOPS | 5,000 TFLOPS | GB300 NVL72 1.11× higher |
| TF32 tensor throughput, with sparsity | 2,200 TFLOPS | 2,500 TFLOPS | GB300 NVL72 1.14× higher |
| FP64 throughput | 1.2 TFLOPS | 1.3 TFLOPS | GB300 NVL72 1.08× higher |
| Maximum power | 1,100 W | 1,400 W | GB300 NVL72 1.27× higher |
| GPU-to-GPU interconnect | 1,800 GB/s | 1,800 GB/s | Same |
Compared versions: B300, per GPU (HGX B300) and Per Blackwell Ultra GPU in GB300 NVL72. The figure in the stronger cell is shaded; power is shown without a winner. Two throughput figures are compared only when both vendors state them on the same basis (both with sparsity, or both dense), and “derived” means a total the vendor publishes divided by the GPU count it publishes. Full tables with sources: B300 specifications · GB300 NVL72 specifications.
Rental prices
| Rental price | B300 | GB300 NVL72 | Difference |
|---|---|---|---|
| Lowest listed on-demand price | $7.40 per GPU-hour · Hyperstack · checked Oct 25, 2026 | $18.00 per GPU-hour · Oracle Cloud · checked Oct 25, 2026 | GB300 NVL72 2.43× higher |
| Lowest listed spot price | $0.99 per GPU-hour · Nebius · checked Oct 25, 2026 | No fresh listing | — |
| Price per GB of memory | $0.027 per GB of GPU memory per hour | $0.065 per GB of GPU memory per hour | GB300 NVL72 2.35× higher |
| Fresh listings | 13 from 10 providers | 1 from 1 providers | — |
Prices cover every version and instance size the providers list, so they are not tied to the versions compared above; the price per GB of memory divides the lowest fresh on-demand price by the memory of the compared version. Listed prices are not like for like across providers. See every listing: B300 prices · GB300 NVL72 prices.
More on these GPUs
Cite this page
Last updated Oct 25, 2026. Figures may change as records are updated — include the date you retrieved them.
| APA | Data Center Census. (2026). B300 vs GB300 NVL72. Retrieved from https://datacentercensus.com/gpu-prices/compare/b300-vs-gb300-nvl72 |
|---|---|
| MLA | “B300 vs GB300 NVL72.” Data Center Census, Oct 25, 2026, https://datacentercensus.com/gpu-prices/compare/b300-vs-gb300-nvl72. |
| Link | https://datacentercensus.com/gpu-prices/compare/b300-vs-gb300-nvl72 |
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