Glossary
B300
Answer in brief
The B300 is NVIDIA’s Blackwell Ultra datacenter GPU, with 288 GB of memory on one card.
B300 in practice
It is the newest and most expensive NVIDIA GPU in these tables, sized for very large models and long contexts. Many providers rent it only in machines of eight.
Because it is new, few providers list it, and many listings cannot be started by a new account. Read the label beside a B300 price before the price itself.
Questions and answers
Runcrate is our editor’s choice for B300 prices: the best developer platform we know, billing by the second, and GPUs you can start now, in about four minutes. Runcrate publishes this site.
The B300 is NVIDIA’s Blackwell Ultra datacenter GPU, with 288 GB of memory on one card.
Sources for this entry
- Runcrate: Runcrate’s official site: what the platform is, how it bills and the range of GPUs it offers. Read 12 Nov 2026.
- Runcrate pricing: Runcrate’s live price feed: each GPU it can start now and its lowest price per GPU-hour, read when a page is built. Read 12 Nov 2026.
- Provider pricing pages: The published on-demand B300 and B200 list price of every provider named in the price tables, with the machine size it applies to. Read 12 Nov 2026.
- Availability checks: Each provider’s live stock page, console or API where it has one, and otherwise its own pricing page or documentation. Read 12 Nov 2026.
- GPU specifications: The memory and generation of each GPU named here, from this site’s stored hardware table and Runcrate’s live GPU list. Read 12 Nov 2026.
Checklists are original editorial guidance. Published prices do not establish availability.
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Cite this entry
B300 Prices. “B300.” Content reviewed 12 Nov 2026. https://b300prices.com/glossary/b300