NVIDIA B200 vs NVIDIA H20
Side-by-side comparison of specifications, performance, and efficiency.
NVIDIA B200
Architecture
Blackwell
Year
2025
VRAM
180 GB
TDP
1.0 kW
NVIDIA H20
Architecture
Hopper
Year
2024
VRAM
96 GB
TDP
400 W
Specifications
NVIDIA B200 NVIDIA H20
Architecture
Blackwell Hopper
Launch Year
2025 2024
Form Factor
SXM SXM
VRAM
180 GB96 GB
Memory Bandwidth
7.7 TB/s4.0 TB/s
TDP
1.0 kW400 W
Process Node
4nm 4nm
| Spec | NVIDIA B200 | NVIDIA H20 |
|---|---|---|
| Architecture | Blackwell | Hopper |
| Launch Year | 2025 | 2024 |
| Form Factor | SXM | SXM |
| VRAM | 180 GB | 96 GB |
| Memory Bandwidth | 7.7 TB/s | 4.0 TB/s |
| TDP | 1.0 kW | 400 W |
| Process Node | 4nm | 4nm |
Performance (TFLOPS)
NVIDIA B200 NVIDIA H20
FP64
37.0 TFlops1.0 TFlops
FP32
75.0 TFlops44.0 TFlops
FP16
2250.0 TFlops148.0 TFlops
BF16
2250.0 TFlops148.0 TFlops
FP8
4500.0 TFlops—
INT8
4500.0 TFlops296.0 TFlops
| Precision | NVIDIA B200 | NVIDIA H20 |
|---|---|---|
| FP64 | 37.0 TFlops | 1.0 TFlops |
| FP32 | 75.0 TFlops | 44.0 TFlops |
| FP16 | 2250.0 TFlops | 148.0 TFlops |
| BF16 | 2250.0 TFlops | 148.0 TFlops |
| FP8 | 4500.0 TFlops | — |
| INT8 | 4500.0 TFlops | 296.0 TFlops |
FLOPS by Precision
Efficiency — TDP vs FP32 Performance
Analysis
Most Efficient
NVIDIA
H20
0.11 TFLOPS/W
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