GPU model
NVIDIA B300: specs, VRAM and rental prices
NVIDIA’s NVIDIA B300: 270 GB of GPU memory (HBM3E), rented from $7.40 per GPU-hour on demand (Hyperstack). Specs from NVIDIA, prices as of Oct 25, 2026.
The B300 is NVIDIA’s Blackwell Ultra GPU, announced in 2025. In its HGX B300 form it has 270 GB of HBM3e per GPU, and the version used in the GB300 NVL72 rack lists 279 GB. This page shows the HGX B300 board and the per-GPU figures from NVIDIA’s Blackwell Ultra datasheet.
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.
NVIDIA B300 specifications
| Specification | HGX B300 board (8 GPUs) | B300, per GPU (HGX B300) | Source |
|---|---|---|---|
| Architecture | Blackwell Ultra | Blackwell Ultra | nvidianews.nvidia.com |
| GPU memory | 2.1 TB total | 270 GB | dam-cdn.nvd.orangelogic.com |
| Memory type | HBM3E | HBM3E | dam-cdn.nvd.orangelogic.com |
| Memory bandwidth | 62 TB/s total | 7.7 TB/s | dam-cdn.nvd.orangelogic.com |
| FP4 tensor | 144 PFLOPS sparse | 108 PFLOPS dense | 18 PFLOPS sparse | 14 PFLOPS dense | dam-cdn.nvd.orangelogic.com |
| FP8 / FP6 tensor (with sparsity) | 72 PFLOPS | 9 PFLOPS | dam-cdn.nvd.orangelogic.com |
| FP16 / BF16 tensor (with sparsity) | 36 PFLOPS | 4.5 PFLOPS | dam-cdn.nvd.orangelogic.com |
| TF32 tensor (with sparsity) | 18 PFLOPS | 2.2 PFLOPS | dam-cdn.nvd.orangelogic.com |
| FP64 / FP64 tensor | 10 TFLOPS | 1.2 TFLOPS | dam-cdn.nvd.orangelogic.com |
| Max thermal design power | — | Configurable up to 1,100 W | dam-cdn.nvd.orangelogic.com |
| NVLink, GPU to GPU | 1.8 TB/s | 1.8 TB/s (fifth-generation NVLink) | dam-cdn.nvd.orangelogic.com |
| Total NVLink switch bandwidth | 14.4 TB/s | — | dam-cdn.nvd.orangelogic.com |
| Host interface | — | PCIe Gen6, 256 GB/s | dam-cdn.nvd.orangelogic.com |
| Multi-Instance GPU | — | Up to 7 | dam-cdn.nvd.orangelogic.com |
Per-GPU figures are the “individual Blackwell Ultra GPU” column of the datasheet for HGX B300. Tensor throughput is stated with sparsity unless marked dense; NVIDIA says dense is half of the sparse figure. NVIDIA calls the GPUs “Blackwell Ultra”; rental providers list them as B300. Not published on the pages cited here: CUDA core count; Tensor core count.
Sources: NVIDIA Blackwell Ultra datasheet · NVIDIA HGX platform page · Blackwell Ultra announcement (2025). Every figure above is copied from these NVIDIA pages; nothing is estimated.
B300 rental prices by provider
Lowest listed price by pricing type
| Pricing | $ per GPU-hour | Provider | Checked |
|---|---|---|---|
| On-demand | $7.40 | Hyperstack | Oct 25, 2026 |
| Spot | $0.99 | Nebius | Oct 25, 2026 |
| Reserved | $7.94 | DigitalOcean (HGX), 12 months | Oct 25, 2026 |
On-demand price by provider
Each provider’s lowest fresh on-demand listing, $ per GPU-hour.
Every listed B300 price
| Provider | Configuration | Pricing | $ per GPU-hour | Region | Checked | Source |
|---|---|---|---|---|---|---|
| Nebius | Configuration not stated HGX B300 |
Spot | $0.99 Listed from $0.99 (preemptible) |
— | nebius.com | |
| CoreWeave | 8 GPUs per instance · 270 GB each HGX B300 |
Spot | $4.48 Listed $35.84/hr per 8-GPU instance (spot) |
North America | coreweave.com | |
| Together AI | Configuration not stated HGX B300 |
Spot | $4.99 Listed $4.99 (listed as preemptible) |
— | together.ai | |
| DigitalOcean | HGX HGX B300 |
Spot | $6.17 Listed $6.17/GPU/hour (Current Spot Price) |
— | digitalocean.com | |
| Lium Sponsor | SXM6 · 288 GB each B300 SXM6 |
Marketplace | $6.40 Listed $6.40 – $12.95 (B300 SXM6) |
— | lium.io | |
| RunPod Community Cloud | 288 GB each B300 |
Marketplace | $6.94 Listed $6.94/hr (B300, Community Cloud) |
— | runpod.io | |
| Hyperstack | 288 GB each B300 |
On-demand | $7.40 | — | hyperstack.cloud | |
| DigitalOcean | HGX HGX B300 |
Reserved, 12 months | $7.94 Listed $7.94/GPU/hour (12-month commitment) |
— | digitalocean.com | |
| Crusoe | HGX · 288 GB each B300 HGX |
On-demand | $8.96 Listed $8.96/GPU-hr |
— | crusoe.ai | |
| Nebius | Configuration not stated HGX B300 |
On-demand | $9.50 | — | nebius.com | |
| Together AI | Configuration not stated HGX B300 |
On-demand | $9.99 | — | together.ai | |
| Oracle Cloud | 8 GPUs per instance · 263 GB each · 8x800 Gb/s BM.GPU.B300.8 |
On-demand | $15.00 Listed $15 per GPU per hour (Oracle Cloud Infrastructure - Compute - GPU - B300) |
— | apexapps.oracle.com | |
| AWS | 8 GPUs per instance · 268 GB each p6-b300.48xlarge |
On-demand | $17.80 Listed $142.42/hr per 8-GPU instance |
us-east-1 | aws.amazon.com |
Download: current prices (CSV) · current prices (JSON) · daily history (CSV) · price-change feed (RSS). Free to reuse with attribution under CC BY 4.0.
Compare the B300 with other GPUs
- B200 vs B300: specs side by side with the lowest listed rental price for each.
Price history
The history chart appears once there are two daily snapshots of an on-demand price. Tracking began Oct 15, 2026; the first snapshot has the lowest listed on-demand price at $7.40 per GPU-hour.
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<p style="font:13px/1.4 system-ui,sans-serif;margin:6px 0 0">Source: <a href="https://datacentercensus.com/gpu-prices/b300">Data Center Census</a></p>
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How these prices are collected
- What counts
- Only prices a provider publishes on a public pricing page or in its public price list, opened by the Census on the day shown. A marketplace is listed under the same rule as every other provider: it must publish per-GPU-hour prices publicly, with no login, and its rows are shown with the type Marketplace. Quotes and “contact sales” rows are not listed, and neither are purchase prices.
- $ per GPU-hour
- The listed price per GPU-hour. Where a provider lists a price per instance, the Census divides it by the GPUs in that instance and shows the original figure under it. Nothing else is converted or estimated.
- Pricing types
- On-demand, spot (including tiers a provider calls preemptible or low-priority), reserved with the term the provider states, and marketplace. Reserved rows without a stated term are not listed. A marketplace row is the lowest per-GPU-hour price its public page shows for that GPU, which comes from third-party hosts and changes often. Marketplace rows are a separate type: they appear in the table, filters, downloads and feeds, but never in the “lowest on-demand” or “lowest spot” figures.
- Variants
- SXM, PCIe, NVL and similar versions are kept separate when the provider names them. A provider that does not name the variant is shown without one.
- Freshness
- Every listing carries the date it was last confirmed, and the daily run re-opens each one. If a listing goes 7 days without a re-check it stays on the page greyed, labelled with the date it was last confirmed, and drops out of the “lowest” figures and the calculator’s default results. At 14 days without a re-check it is taken off the site; the daily history still holds it.
- History
- Each daily run saves a snapshot, so the model pages can chart the lowest listed on-demand price over time and the change log can show what moved. History began Oct 15, 2026.
- Differences between providers
- Listed prices are not like for like: regions, minimum instance sizes, networking, storage, commitments and availability differ and are not priced here. Check the provider before relying on a figure.
Providers checked but not listed
- Google Cloud: The compute pricing pages (cloud.google.com/compute/gpus-pricing and vm-instance-pricing) showed no GPU prices when opened.
- Vast.ai: Its pricing page loads live "from" prices from a public JSON file whose terms allow display and citation with attribution but require a data license for bulk collection, redistribution or use in any index, benchmark or derivative product. The Census republishes prices as open data, so it does not list Vast.ai without that license.
- Voltage Park: Its pricing pages say "Contact for pricing" for every GPU; one homepage line says "Starting at $1.99/hr" without a GPU model or unit.
B300: common questions
How much VRAM does the B300 have?
NVIDIA lists 2.1 TB total (HGX B300 board (8 GPUs)), 270 GB (B300, per GPU (HGX B300)) of GPU memory for the NVIDIA B300, which is HBM3E, with memory bandwidth of 62 TB/s total (HGX B300 board (8 GPUs)), 7.7 TB/s (B300, per GPU (HGX B300)). The specification table on this page shows each figure with the page it came from.
How much power does the B300 use?
NVIDIA lists the NVIDIA B300 at Configurable up to 1,100 W.
How much does it cost to rent a B300 per hour?
The lowest listed on-demand price among listings checked in the last 7 days is $7.40 per GPU-hour at Hyperstack, checked Oct 25, 2026. 13 fresh listings from 10 providers are shown in the table above, including spot, reserved and marketplace prices.
Which providers list B300 prices?
Nebius, CoreWeave, Together AI, DigitalOcean, Lium, RunPod Community Cloud, Hyperstack, Crusoe, Oracle Cloud, AWS.
Which architecture is the B300 built on, and when was it announced?
The NVIDIA B300 uses the Blackwell Ultra architecture and was announced or launched in 2025, according to the NVIDIA page cited in the specifications.
Related: All GPU prices · GPU comparisons · Rental cost calculator · H100 · H200 · B200 · GB200 NVL72 · GB300 NVL72 · A100 · L40S · RTX PRO 6000 · L4 · T4 · MI300X · MI325X · MI355X
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). NVIDIA B300 specs and rental prices. Retrieved from https://datacentercensus.com/gpu-prices/b300 |
|---|---|
| MLA | “NVIDIA B300 specs and rental prices.” Data Center Census, Oct 25, 2026, https://datacentercensus.com/gpu-prices/b300. |
| Link | https://datacentercensus.com/gpu-prices/b300 |
Republishing a figure or table? Attribute it to Data Center Census with a link to this page. The underlying data is downloadable as JSON and CSV; the press kit has standing figures and contact details.