A100 vs B200: Specs, VRAM & Price
Short answer: choose the B200 when 180 GB of VRAM is the gating requirement. Choose the A100 when 80 GB is enough for the workload and the lower hourly rate points that way.
The A100 has 80 GB of VRAM; the B200 has 180 GB.
You can rent both by the hour, no purchase required. A100 from $1.26/GPU/hr; B200 from $9.35/GPU/hr. The A100 is 86% cheaper at the entry rate.
A100
Good for training and inference on models that don't need FP8 kernels
B200
Good for training and serving frontier-scale LLMs
Last updated: 2026-11-03 UTCRefreshes every 6 hours
Specs side by side
| Spec | A100 | B200 |
|---|---|---|
| VRAM | 80 GB | 180 GB |
| Memory bandwidth | 2,039 GB/s | 8 TB/s |
| Architecture | Ampere | Blackwell |
| Compute capability | 8.0 | 10.0 |
| Precisions in hardware | FP32, FP16, BF16, INT4 | FP32, FP16, BF16, FP8, INT4 |
| Peak FP16/BF16 tensor TFLOPS | 312 TFLOPS | 2,250 TFLOPS |
| Peak FP8 tensor TFLOPS | – | 4,500 TFLOPS |
| NVLink / multi-GPU interconnect | NVLink 3, 600 GB/s | NVLink 5, 1.8 TB/s per GPU |
| Max board power (TDP) | 400W (SXM) | Up to 1,000W |
| Form factor | SXM4 | SXM |
| Regions | 5 | 1 |
On-demand price
| Rate | A100 | B200 |
|---|---|---|
| Lowest per GPU/hr | $1.52/GPU/hr | $9.35/GPU/hr |
Which is better for AI: A100 or B200?
Choose the B200 when 180 GB of VRAM is the gating requirement. Choose the A100 when 80 GB is enough for the workload and the lower hourly rate points that way.
A100 vs B200: common questions
Is the A100 or the B200 better for AI?
Short answer: choose the B200 when 180 GB of VRAM is the gating requirement. Choose the A100 when 80 GB is enough for the workload and the lower hourly rate points that way.
Is the A100 or the B200 cheaper to rent?
On Aquanode's live marketplace the A100 starts at $1.26/GPU/hr (median $1.72/GPU/hr) and the B200 starts at $9.35/GPU/hr (median $9.35/GPU/hr). The A100 is the cheaper of the two at the entry rate, by 86%.
What is the difference between the A100 and the B200?
The A100 has 80 GB of VRAM against the B200's 180 GB; the A100 is an Ampere part and the B200 is Blackwell (compute capability 8.0 vs 10.0); only the B200 supports FP8 compute. On price, the A100 lists from $1.26/GPU/hr and the B200 from $9.35/GPU/hr.
How widely available are the A100 and the B200?
The A100 is listed in 5 regions and the B200 in 1 region right now.
How much does 1,000 GPU-hours cost on the A100 vs the B200?
At the lowest rates listed today, 1,000 GPU-hours costs $1,264 on the A100 and $9,350 on the B200, a difference of $8,086 for the same runtime. Rates are per GPU per hour and update hourly.
How much VRAM does the A100 have compared to the B200?
The A100 has 80 GB of VRAM; the B200 has 180 GB.
Does the A100 or the B200 support NVLink?
Yes, both support a multi-GPU interconnect: the A100 has NVLink 3, 600 GB/s and the B200 has NVLink 5, 1.8 TB/s per GPU.
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 A100 page and B200 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 A100 VRAM calculator and the B200 VRAM calculator, see vendor-published throughput in the GPU benchmarks and specs table, or browse every model by generation in the GPU index.
More A100 comparisons
More B200 comparisons
Related reading: A100 pricing and specs, A100 vs H100, A100 vs V100, and The best GPUs for AI, ranked.
