Flopper.io GPU Comparison Sheet
September 26, 2026
flopper.io/compare/nvidia-h20-141gb-vs-nvidia-gh200-144gb-hbm3eNVIDIA H20 141GB HBM3e vs NVIDIA GH200 144GB HBM3e
Side by side datacenter GPU specifications from the Flopper.io database.
Overview
| NVIDIA H20 141GB HBM3e | NVIDIA GH200 144GB HBM3e | |
|---|---|---|
| FP32 TFLOPS | 44.0 | 67.0 |
| Memory | 141 GB | 144 GB |
| Memory Bandwidth | 4.0 TB/s | 4.9 TB/s |
| TDP | 400 W | 1.0 kW |
Performance by Precision
| Precision | NVIDIA H20 141GB HBM3e peak TFLOPS (dense) | NVIDIA GH200 144GB HBM3e 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 GH200 144GB HBM3e | |
|---|---|---|
| Architecture | Hopper | Hopper |
| Process Node | 4nm | 4nm |
| Launch Year | 2025 | 2024 |
| Form Factor | SXM | Superchip |
| Memory Type | HBM3e | HBM3e |
| Interface Width | — | — |
| Interconnect | NVLink | NVLink-C2C |
| TDP | 400 W | 1.0 kW |
| FP32 Efficiency | 0.11 TFLOPS/W | 0.07 TFLOPS/W |