B300 vs DGX A100: Specs, VRAM & Price
Short answer: choose the B300 when 288 GB of VRAM is the gating requirement. Choose the DGX A100 when 80 GB is enough for the workload and the lower hourly rate points that way.
The B300 has 288 GB of VRAM; the DGX A100 has 80 GB.
You can rent both by the hour, no purchase required. B300 from $9.89/GPU/hr; DGX A100 from $1.37/GPU/hr. The DGX A100 is 86% cheaper at the entry rate.
B300
Good for training and serving frontier-scale LLMs
DGX A100
Good for training and inference on models that don't need FP8 kernels
Last updated: 2026-10-10 17:38:55 UTCRefreshes hourly
Specs side by side
| Spec | B300 | DGX A100 |
|---|---|---|
| VRAM | 288 GB | 80 GB |
| Architecture | Blackwell Ultra | Ampere |
| Compute capability | 10.3 | 8.0 |
| Precisions in hardware | FP32, FP16, BF16, FP8, INT4 | FP32, FP16, BF16, INT4 |
| Regions | 1 | 1 |
On-demand price
| Rate | B300 | DGX A100 |
|---|---|---|
| Lowest per GPU/hr | $9.89/GPU/hr | $1.37/GPU/hr |
Which is better for AI: B300 or DGX A100?
Choose the B300 when 288 GB of VRAM is the gating requirement. Choose the DGX A100 when 80 GB is enough for the workload and the lower hourly rate points that way.
B300 vs DGX A100: common questions
Is the B300 or the DGX A100 better for AI?
Short answer: choose the B300 when 288 GB of VRAM is the gating requirement. Choose the DGX A100 when 80 GB is enough for the workload and the lower hourly rate points that way.
Is the B300 or the DGX A100 cheaper to rent?
On Aquanode's live marketplace the B300 starts at $9.89/GPU/hr (median $9.89/GPU/hr) and the DGX A100 starts at $1.37/GPU/hr (median $1.52/GPU/hr). The DGX A100 is the cheaper of the two at the entry rate, by 86%.
What is the difference between the B300 and the DGX A100?
The B300 has 288 GB of VRAM against the DGX A100's 80 GB; the B300 is a Blackwell Ultra part and the DGX A100 is Ampere (compute capability 10.3 vs 8.0); only the B300 supports FP8 compute. On price, the B300 lists from $9.89/GPU/hr and the DGX A100 from $1.37/GPU/hr.
How widely available are the B300 and the DGX A100?
The B300 is listed in 1 region and the DGX A100 in 1 region right now.
How much does 1,000 GPU-hours cost on the B300 vs the DGX A100?
At the lowest rates listed today, 1,000 GPU-hours costs $9,889 on the B300 and $1,367 on the DGX A100, a difference of $8,522 for the same runtime. Rates are per GPU per hour and update hourly.
How much VRAM does the B300 have compared to the DGX A100?
The B300 has 288 GB of VRAM; the DGX A100 has 80 GB.
How this comparison is calculated
Every price is normalized to a per-GPU hourly rate using the same pipeline as every other pricing surface on Aquanode, and only the cheapest qualifying offer per provider is shown. A dash means that provider does not currently list that GPU.
Architecture, compute capability and supported precisions come from each vendor's published datasheet for that generation, not from the marketplace feed. This page regenerates at most once per hour.
Memory bandwidth, tensor TFLOPS, NVLink/interconnect and max board power are the same verified-from-datasheet figures shown on each model's own B300 page and DGX A100 page, which link the primary vendor source for that model. A dash here means Aquanode hasn't verified that figure from a primary source yet, never a guess.
Go further
Check what fits in each card's memory with the B300 VRAM calculator and the DGX A100 VRAM calculator, or browse every model by generation in the GPU index.
More B300 comparisons
More DGX A100 comparisons
Related reading: H100 pricing and specs, H100 vs H200, A100 vs H100, H100 and H200: SXM vs NVL vs PCIe, and The best GPUs for AI, ranked.
