Flopper.io GPU Comparison Sheet
September 26, 2026
flopper.io/compare/nvidia-h20-141gb-vs-nvidia-h100-sxm5-80gbNVIDIA H20 141GB HBM3e vs NVIDIA H100 SXM5 80GB
Side by side datacenter GPU specifications from the Flopper.io database.
Overview
| NVIDIA H20 141GB HBM3e | NVIDIA H100 SXM5 80GB | |
|---|---|---|
| FP32 TFLOPS | 44.0 | 67.0 |
| Memory | 141 GB | 80 GB |
| Memory Bandwidth | 4.0 TB/s | 3.4 TB/s |
| TDP | 400 W | 700 W |
Performance by Precision
| Precision | NVIDIA H20 141GB HBM3e peak TFLOPS (dense) | NVIDIA H100 SXM5 80GB peak TFLOPS (dense) |
|---|---|---|
| FP64 | 1.0 | 34.0 |
| FP64_TC Tensor Core | — | 67.0 |
| FP32 | 44.0 | 67.0 |
| TF32 | 74.0 | 494.0 |
| BF16 | 148.0 | 990.0 |
| FP16 | 148.0 | 990.0 |
| FP8 | 296.0 | 1979.0 |
| FP6 | — | — |
| FP4 | — | — |
| INT8 | 296.0 | 1979.0 |
Specifications
| NVIDIA H20 141GB HBM3e | NVIDIA H100 SXM5 80GB | |
|---|---|---|
| Architecture | Hopper | Hopper |
| Process Node | 4nm | 4nm |
| Launch Year | 2025 | 2022 |
| Form Factor | SXM | SXM |
| Memory Type | HBM3e | — |
| Interface Width | — | — |
| Interconnect | NVLink | — |
| TDP | 400 W | 700 W |
| FP32 Efficiency | 0.11 TFLOPS/W | 0.10 TFLOPS/W |