GPU MODELS / ALTERNATIVES TO A100 40GB SXM
Alternatives to the 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. It trains and serves exactly like an A100 until the model crosses 40 GB - which in 2026 most serious models do. What remains is a capable mid-size workhorse that rents at a real discount to its 80 GB sibling.
People usually compare the A100 40GB SXM against A100 80GB, H100 SXM. Prices below are live on-demand published rates from the panel.
LOADING LIVE DATA...
| Alternative | Memory | Bandwidth | Cheapest live rate | Head to head |
|---|---|---|---|---|
| A100 80GB | 80 GB HBM2e | 2.0 TB/s | - | A100 40GB SXM vs A100 80GB |
| H100 SXM | 80 GB HBM3 | 3.35 TB/s | - | A100 40GB SXM vs H100 SXM |
WHEN EACH ALTERNATIVE WINS
A100 80GB
Same compute, double the memory and 31% more bandwidth. If the model fits in 40 GB the cheaper 40 GB part is the same speed; if it does not, no discount compensates.
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.
A100 40GB SXM ALTERNATIVES - FAQ
What is the best alternative to the A100 40GB SXM?
It depends on the workload. A100 80GB: The 80 GB A100 in either form factor is the market's reference point for large-model work: enough HBM to fine-tune 70B-class models, enough bandwidth to keep tensor cores fed, and a huge installed base that keeps hourly rates competitive. 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. Live rates for each are in the table above.
Why look for A100 40GB SXM alternatives?
Models over ~35 GB of weights - the 80 GB A100 or H100 removes the multi-card tax.
How much does the A100 40GB SXM cost compared to its alternatives?
Each alternative's current cheapest published rate is listed in the table above; figures recompute hourly from provider-published prices.