Flopper.io GPU Comparison Sheet
September 30, 2026
flopper.io/compare/nvidia-h100-sxm5-80gb-vs-nvidia-h100-pcie-80gbNVIDIA H100 SXM5 80GB vs NVIDIA H100 PCIe 80GB
Side by side datacenter GPU specifications from the Flopper.io database.
Overview
| NVIDIA H100 SXM5 80GB | NVIDIA H100 PCIe 80GB | |
|---|---|---|
| FP32 TFLOPS | 67.0 | 51.0 |
| Memory | 80 GB | 80 GB |
| Memory Bandwidth | 3.4 TB/s | 2.0 TB/s |
| TDP | 700 W | 350 W |
Performance by Precision
| Precision | NVIDIA H100 SXM5 80GB peak TFLOPS (dense) | NVIDIA H100 PCIe 80GB peak TFLOPS (dense) |
|---|---|---|
| FP64 | 34.0 | 26.0 |
| FP64_TC Tensor Core | 67.0 | — |
| FP32 | 67.0 | 51.0 |
| TF32 | 494.0 | 378.0 |
| BF16 | 990.0 | 756.5 |
| FP16 | 990.0 | 756.5 |
| FP8 | 1979.0 | 1513.0 |
| FP6 | — | — |
| FP4 | — | — |
| INT8 | 1979.0 | 1513.0 |
Specifications
| NVIDIA H100 SXM5 80GB | NVIDIA H100 PCIe 80GB | |
|---|---|---|
| Architecture | Hopper | Hopper |
| Process Node | 4nm | 4nm |
| Launch Year | 2022 | 2022 |
| Form Factor | SXM | PCIe |
| Memory Type | — | — |
| Interface Width | — | — |
| Interconnect | — | — |
| TDP | 700 W | 350 W |
| FP32 Efficiency | 0.10 TFLOPS/W | 0.15 TFLOPS/W |