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NVIDIA H100 vs NVIDIA A100
Side-by-side comparison of specifications, performance, and efficiency.
NVIDIA H100
OfficialArchitecture
Hopper
Year
2022
VRAM
80 GB
TDP
700 W
NVIDIA A100
OfficialArchitecture
Ampere
Year
2020
VRAM
80 GB
TDP
400 W
Specifications
NVIDIA H100 NVIDIA A100
Architecture
Hopper Ampere
Launch Year
2022 2020
Form Factor
SXM SXM
VRAM
80 GB80 GB
Memory Bandwidth
3.4 TB/s2.0 TB/s
TDP
700 W400 W
Process Node
4nm 7nm
| Spec | NVIDIA H100 | NVIDIA A100 |
|---|---|---|
| Architecture | Hopper | Ampere |
| Launch Year | 2022 | 2020 |
| Form Factor | SXM | SXM |
| VRAM | 80 GB | 80 GB |
| Memory Bandwidth | 3.4 TB/s | 2.0 TB/s |
| TDP | 700 W | 400 W |
| Process Node | 4nm | 7nm |
Performance (TFLOPS)
NVIDIA H100 NVIDIA A100
FP64
34.0 TFlops9.7 TFlops
FP32
67.0 TFlops19.5 TFlops
FP16
989.5 TFlops312.0 TFlops
BF16
989.5 TFlops312.0 TFlops
FP8
1979.0 TFlops—
INT8
1979.0 TFlops624.0 TFlops
| Precision | NVIDIA H100 | NVIDIA A100 |
|---|---|---|
| FP64 | 34.0 TFlops | 9.7 TFlops |
| FP32 | 67.0 TFlops | 19.5 TFlops |
| FP16 | 989.5 TFlops | 312.0 TFlops |
| BF16 | 989.5 TFlops | 312.0 TFlops |
| FP8 | 1979.0 TFlops | — |
| INT8 | 1979.0 TFlops | 624.0 TFlops |
FLOPS by Precision
Efficiency — TDP vs FP32 Performance
Analysis
Most Efficient
NVIDIA
H100
0.10 TFLOPS/W
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