A100 80GB SXM vs A100 SXM

A100 SXM vs A100 80GB SXM

Same silicon, double the memory and 25% more bandwidth. If your job fits in 40 GB, the cheaper 40 GB card is the same speed; if it does not, no amount of savings helps.

Workload fit

A100 80GB SXM: fine-tuning up to 70b, multi-gpu training, large-model inference. A100 SXM: mid-size model training, multi-gpu nodes.

Which is cheaper to rent, A100 80GB SXM or A100 SXM?

By today's published on-demand rates: A100 80GB SXM starts at $0.290/GPU/hr (median $5.12, 7 providers) and A100 SXM starts at $1.050/GPU/hr (median $1.49, 13 providers). The cheapest live listing is the A100 80GB SXM at SpotGPUs. Figures recompute from the panel on every refresh.

A100 80GB SXM or A100 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. A100 SXM: The original 40 GB A100 SXM: same tensor throughput as the 80 GB part, roughly 1.6 TB/s of HBM2 bandwidth, half the memory. The side-by-side spec table and live price rows above give the full picture.

Where can I rent A100 80GB SXM and A100 SXM?

7 providers publish A100 80GB SXM rates and 13 publish A100 SXM rates on Compute Cafe. Every row links to the provider's own published price - committed-use and reserved rates are excluded.