COMPARE / A100 80GB SXM VS A100 PCIE
A100 80GB SXM vs A100 PCIe
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 A100 PCIE
$1.150/hr
Denvr Dataworks · median $1.99 · 5 providers
CHEAPER RIGHT NOW
A100 80GB SXM
live panel, 2026-09-27
| A100 80GB SXM | A100 PCIE | |
|---|---|---|
| MAKER | NVIDIA | NVIDIA |
| ARCHITECTURE | Ampere | Ampere |
| LAUNCHED | 2020 | 2021 |
| MEMORY | 80 GB HBM2e | 40 or 80 GB HBM2e (providers often list without the variant) |
| MEMORY BANDWIDTH | 2.0 TB/s | 1,555-1,935 GB/s depending on variant |
| TENSOR COMPUTE | 312 TFLOPS FP16/BF16 tensor dense (624 sparse) | 312 TFLOPS FP16/BF16 tensor dense (624 sparse) |
| POWER DRAW | 400 W | 250 W |
| INTERCONNECT | NVLink 3.0 600 GB/s | PCIe 4.0 x16 (optional NVLink bridge) |
HOW TO CHOOSE
A100 PCIe vs A100 80GB SXM
The SXM part adds NVLink 3.0 at 600 GB/s and higher power limits. Same per-card compute; the fabric is what you pay for.
Workload fit
A100 80GB SXM: fine-tuning up to 70b, multi-gpu training, large-model inference. A100 PCIe: single-gpu fine-tuning, inference serving, multi-gpu training.
A100 80GB SXM VS A100 PCIE - FAQ
Which is cheaper to rent, A100 80GB SXM or A100 PCIe?
By today's published on-demand rates: A100 80GB SXM starts at $0.290/GPU/hr (median $5.12, 7 providers) and A100 PCIe starts at $1.150/GPU/hr (median $1.99, 5 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 PCIe - 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 PCIe: The PCIe A100 brings Ampere tensor cores to standard servers at 250 W. The side-by-side spec table and live price rows above give the full picture.
Where can I rent A100 80GB SXM and A100 PCIe?
7 providers publish A100 80GB SXM rates and 5 publish A100 PCIe 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 · A100 PCIe · all comparisons