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NVIDIA H20 vs NVIDIA GH200
Side-by-side comparison of specifications, performance, and efficiency.
NVIDIA H20
Architecture
Hopper
Year
2024
VRAM
96 GB
TDP
400 W
NVIDIA GH200
Architecture
Hopper
Year
2024
VRAM
144 GB
TDP
1.0 kW
Specifications
NVIDIA H20 NVIDIA GH200
Architecture
Hopper Hopper
Launch Year
2024 2024
Form Factor
SXM SXM
VRAM
96 GB144 GB
Memory Bandwidth
4.0 TB/s4.9 TB/s
TDP
400 W1.0 kW
Process Node
4nm 4nm
| Spec | NVIDIA H20 | NVIDIA GH200 |
|---|---|---|
| Architecture | Hopper | Hopper |
| Launch Year | 2024 | 2024 |
| Form Factor | SXM | SXM |
| VRAM | 96 GB | 144 GB |
| Memory Bandwidth | 4.0 TB/s | 4.9 TB/s |
| TDP | 400 W | 1.0 kW |
| Process Node | 4nm | 4nm |
Performance (TFLOPS)
NVIDIA H20 NVIDIA GH200
FP64
1.0 TFlops 34.0 TFlops
FP32
44.0 TFlops 67.0 TFlops
FP16
148.0 TFlops
sparse not published
990.0 TFlops 1979.0
TFLOPS sparse
BF16
148.0 TFlops
sparse not published
990.0 TFlops 1979.0
TFLOPS sparse
FP8
296.0 TFlops
592.0
TFLOPS sparse
1979.0 TFlops 3958.0
TFLOPS sparse
INT8
296.0 TFlops
sparse not published
1979.0 TFlops 3958.0
TOPS sparse
| Precision | NVIDIA H20 | NVIDIA GH200 |
|---|---|---|
| FP64 | 1.0 TFlops | 34.0 TFlops |
| FP32 | 44.0 TFlops | 67.0 TFlops |
| FP16 | 148.0 TFlops sparse not published | 990.0 TFlops 1979.0
TFLOPS sparse |
| BF16 | 148.0 TFlops sparse not published | 990.0 TFlops 1979.0
TFLOPS sparse |
| FP8 | 296.0 TFlops 592.0
TFLOPS sparse | 1979.0 TFlops 3958.0
TFLOPS sparse |
| INT8 | 296.0 TFlops sparse not published | 1979.0 TFlops 3958.0
TOPS sparse |
FLOPS by Precision
Efficiency — TDP vs FP32 Performance
Analysis
Most Efficient
NVIDIA
H20
0.11 TFLOPS/W
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