H100 SXM
training · high-throughput inference
H100 SXM vs A100 SXM
Compare memory, node configurations, and fixed weekly and monthly cost before choosing between NVIDIA H100 SXM and NVIDIA A100 SXM.
H100 SXM provides the same amount of VRAM per card. A100 SXM costs $560 less per 30-day term . Choose based on whether memory headroom or lower fixed cost is the binding constraint.
training · high-throughput inference
training · batch inference
| Specification | H100 SXM | A100 SXM |
|---|---|---|
| Architecture | Hopper | Ampere |
| VRAM | 80 GB HBM3 | 80 GB HBM2e |
| Host resources / card | 24 vCPU · 192 GB RAM | 20 vCPU · 160 GB RAM |
| Local NVMe / card | 3.84 TB | 2 TB |
| 7-day price / card | $380 | $224 |
| 30-day price / card | $1,352 | $792 |
| 4-GPU node / 30 days | $4,975 | $2,915 |
| Catalog quantity | 690 cards | 780 cards |
Workload decision · updated 2026-09-04
Both accelerators offer 80 GB, so this is not primarily a memory-capacity decision. Compare the value of a Hopper-optimized software path with the lower fixed cost of an established Ampere configuration.
Choose H100 SXM when your application has a validated Hopper path, such as kernels deliberately using Transformer Engine or FP8, or when profiling identifies memory movement as a bottleneck. Keep the accuracy target and software versions the same in your pilot.
Choose A100 SXM when the complete workload already fits in 80 GB, the CUDA environment is proven on Ampere, and a pilot has not demonstrated enough benefit from Hopper to cover the higher rental cost.
| Manufacturer specification | H100 SXM | A100 SXM |
|---|---|---|
| Architecture | Hopper | Ampere |
| Memory | 80 GB HBM3 | 80 GB HBM2e |
| Published memory bandwidth | 3.35 TB/s | 2,039 GB/s |
| Published SXM NVLink bandwidth | 900 GB/s | 600 GB/s |
Published accelerator specifications, not a measurement of AnchorGPU infrastructure. Host topology and delivered fabric must be confirmed separately.
Bottom line. Start with A100 as the lower-cost 80 GB baseline. Choose H100 when an application-level pilot shows a useful Hopper advantage.
Catalog cost difference: $156 per 7 days and $560 per 30 days. Prices are read from the same catalog as the configurator.
Manufacturer specifications inform the comparison. Recommendations are workload-dependent; no AnchorGPU performance benchmark is claimed.
NVIDIA H100 specifications ↗NVIDIA A100 specifications ↗