DGX A100 vs H100: Specs, VRAM & Price
Short answer: choose the H100 when your workload uses FP8 quantized inference or serving. Choose the DGX A100 when your workload is BF16/FP32-only and FP8 buys you nothing.
Both the DGX A100 and the H100 ship with 80 GB of VRAM.
You can rent both by the hour, no purchase required. DGX A100 from $1.52/GPU/hr; H100 from $2.98/GPU/hr. The DGX A100 is 49% cheaper at the entry rate.
DGX A100
Good for training and inference on models that don't need FP8 kernels
H100
Good for training and serving frontier-scale LLMs
Last updated: 2026-11-03 UTCRefreshes every 6 hours
Specs side by side
| Spec | DGX A100 | H100 |
|---|---|---|
| VRAM | 80 GB | 80 GB |
| Memory bandwidth | – | 3.35 TB/s |
| Architecture | Ampere | Hopper |
| Compute capability | 8.0 | 9.0 |
| Precisions in hardware | FP32, FP16, BF16, INT4 | FP32, FP16, BF16, FP8, INT4 |
| Peak FP16/BF16 tensor TFLOPS | – | 989 TFLOPS |
| Peak FP8 tensor TFLOPS | – | 1,979 TFLOPS |
| NVLink / multi-GPU interconnect | – | NVLink 4, 900 GB/s bidirectional |
| Max board power (TDP) | – | Up to 700W (configurable) |
| Form factor | – | SXM5 |
| Regions | 1 | 6 |
On-demand price
| Rate | DGX A100 | H100 |
|---|---|---|
| Lowest per GPU/hr | $1.52/GPU/hr | $3.42/GPU/hr |
Which is better for AI: DGX A100 or H100?
Choose the H100 when your workload uses FP8 quantized inference or serving. Choose the DGX A100 when your workload is BF16/FP32-only and FP8 buys you nothing.
DGX A100 vs H100: common questions
Is the DGX A100 or the H100 better for AI?
Short answer: choose the H100 when your workload uses FP8 quantized inference or serving. Choose the DGX A100 when your workload is BF16/FP32-only and FP8 buys you nothing.
Is the DGX A100 or the H100 cheaper to rent?
On Aquanode's live marketplace the DGX A100 starts at $1.52/GPU/hr (median $1.52/GPU/hr) and the H100 starts at $2.98/GPU/hr (median $3.84/GPU/hr). The DGX A100 is the cheaper of the two at the entry rate, by 49%.
What is the difference between the DGX A100 and the H100?
Both cards report 80 GB of VRAM; the DGX A100 is an Ampere part and the H100 is Hopper (compute capability 8.0 vs 9.0); only the H100 supports FP8 compute. On price, the DGX A100 lists from $1.52/GPU/hr and the H100 from $2.98/GPU/hr.
How widely available are the DGX A100 and the H100?
The DGX A100 is listed in 1 region and the H100 in 6 regions right now.
How much does 1,000 GPU-hours cost on the DGX A100 vs the H100?
At the lowest rates listed today, 1,000 GPU-hours costs $1,518 on the DGX A100 and $2,980 on the H100, a difference of $1,462 for the same runtime. Rates are per GPU per hour and update hourly.
How much VRAM does the DGX A100 have compared to the H100?
Both the DGX A100 and the H100 ship with 80 GB of VRAM.
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 DGX A100 page and H100 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 DGX A100 VRAM calculator and the H100 VRAM calculator, see vendor-published throughput in the GPU benchmarks and specs table, or browse every model by generation in the GPU index.
More DGX A100 comparisons
More H100 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.
