COMPARE / A100 40GB SXM VS H100 SXM

A100 40GB 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 40GB SXM
$1.000/hr
RunPod · median $4.08 · 4 providers
CHEAPEST H100 SXM
$0.890/hr
SpotGPUs · median $5.49 · 77 providers
CHEAPER RIGHT NOW
H100 SXM
live panel, 2026-09-27
A100 40GB SXMH100 SXM
MAKERNVIDIANVIDIA
ARCHITECTUREAmpereHopper
LAUNCHED20202022
MEMORY40 GB HBM280 GB HBM3
MEMORY BANDWIDTH1,555 GB/s3.35 TB/s
TENSOR COMPUTE312 TFLOPS FP16/BF16 tensor dense (624 sparse)989 TFLOPS FP16/BF16 tensor dense (1,979 sparse); 1,979 TFLOPS FP8 dense
POWER DRAW400 W (SXM4)700 W
INTERCONNECTNVLink 3.0 600 GB/sNVLink 4.0 900 GB/s

HOW TO CHOOSE

A100 40GB SXM vs H100 SXM
The H100 triples dense FP16 throughput and adds FP8 at roughly 2-3x the hourly rate. For FP16 work that fits in 40 GB, the A100 40GB is often the better cost per step.
Workload fit
A100 40GB SXM: mid-size fine-tuning, batch inference, 70b-class serving. H100 SXM: llm pre-training, 70b+ fine-tuning, high-throughput inference.

A100 40GB SXM VS H100 SXM - FAQ

Which is cheaper to rent, A100 40GB SXM or H100 SXM?
By today's published on-demand rates: A100 40GB SXM starts at $1.000/GPU/hr (median $4.08, 4 providers) and H100 SXM starts at $0.890/GPU/hr (median $5.49, 77 providers). The cheapest live listing is the H100 SXM at SpotGPUs. Figures recompute from the panel on every refresh.
A100 40GB SXM or H100 SXM - which should I rent?
A100 40GB SXM: The 40 GB SXM A100 is the original 2020 Ampere flagship module: same silicon and tensor throughput as the 80 GB part, half the memory and bandwidth. 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 40GB SXM and H100 SXM?
4 providers publish A100 40GB 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 40GB SXM · H100 SXM · all comparisons