COMPARE / A100 80GB SXM VS H100 SXM
A100 80GB SXM vs H100 SXM
Specs from the chip makers' datasheets; prices from the live Compute Cafe panel, refreshed hourly. Every rate is an on-demand published price with a source receipt.
CHEAPEST A100 80GB SXM
$0.290/hr
SpotGPUs · median $5.12 · 7 providers
CHEAPEST H100 SXM
$0.890/hr
SpotGPUs · median $5.49 · 77 providers
CHEAPER RIGHT NOW
A100 80GB SXM
live panel, 2026-09-27
| A100 80GB SXM | H100 SXM | |
|---|---|---|
| MAKER | NVIDIA | NVIDIA |
| ARCHITECTURE | Ampere | Hopper |
| LAUNCHED | 2020 | 2022 |
| MEMORY | 80 GB HBM2e | 80 GB HBM3 |
| MEMORY BANDWIDTH | 2.0 TB/s | 3.35 TB/s |
| TENSOR COMPUTE | 312 TFLOPS FP16/BF16 tensor dense (624 sparse) | 989 TFLOPS FP16/BF16 tensor dense (1,979 sparse); 1,979 TFLOPS FP8 dense |
| POWER DRAW | 400 W | 700 W |
| INTERCONNECT | NVLink 3.0 600 GB/s | NVLink 4.0 900 GB/s |
HOW TO CHOOSE
A100 80GB SXM vs H100 SXM
The H100 roughly triples dense FP16 throughput, adds FP8 and raises bandwidth to 3.35 TB/s - but typically lists at 2-3x the A100's hourly rate. For fine-tuning jobs that fit in 80 GB, the A100 is often the better value; for pre-training, the H100 pays for itself.
H100 SXM vs A100 80GB SXM
H100 delivers ~3x the dense FP16 and 6x with FP8, at typically 2-3x the hourly rate. Pre-training pays for the premium; fine-tuning often does not.
Workload fit
A100 80GB SXM: fine-tuning up to 70b, multi-gpu training, large-model inference. H100 SXM: llm pre-training, 70b+ fine-tuning, high-throughput inference.
A100 80GB SXM VS H100 SXM - FAQ
Which is cheaper to rent, A100 80GB SXM or H100 SXM?
By today's published on-demand rates: A100 80GB SXM starts at $0.290/GPU/hr (median $5.12, 7 providers) and H100 SXM starts at $0.890/GPU/hr (median $5.49, 77 providers). The cheapest live listing is the A100 80GB SXM at SpotGPUs. Figures recompute from the panel on every refresh.
A100 80GB SXM or H100 SXM - which should I rent?
A100 80GB SXM: The A100 80GB was the standard large-model training chip of 2021-2023 and still anchors an enormous installed base. H100 SXM: The H100 SXM is the chip the current generation of frontier models was trained on, and the benchmark every other datacenter GPU is priced against. The side-by-side spec table and live price rows above give the full picture.
Where can I rent A100 80GB SXM and H100 SXM?
7 providers publish A100 80GB SXM rates and 77 publish H100 SXM rates on Compute Cafe. Every row links to the provider's own published price - committed-use and reserved rates are excluded.
Full pricing: A100 80GB SXM · H100 SXM · all comparisons