AMD Radeon RX 7900 XTX vs NVIDIA H100
Side-by-side comparison of specifications, performance, and efficiency.
AMD Radeon RX 7900 XTX
Architecture
RDNA 3
Year
2022
VRAM
24 GB
TDP
355 W
NVIDIA H100
Architecture
Hopper
Year
2022
VRAM
80 GB
TDP
350 W
Specifications
AMD Radeon RX 7900 XTX NVIDIA H100
Architecture
RDNA 3 Hopper
Launch Year
2022 2022
Form Factor
PCIe PCIe
VRAM
24 GB80 GB
Memory Bandwidth
960 GB/s2.0 TB/s
TDP
355 W350 W
Process Node
5nm 4nm
| Spec | AMD Radeon RX 7900 XTX | NVIDIA H100 |
|---|---|---|
| Architecture | RDNA 3 | Hopper |
| Launch Year | 2022 | 2022 |
| Form Factor | PCIe | PCIe |
| VRAM | 24 GB | 80 GB |
| Memory Bandwidth | 960 GB/s | 2.0 TB/s |
| TDP | 355 W | 350 W |
| Process Node | 5nm | 4nm |
Performance (TFLOPS)
AMD Radeon RX 7900 XTX NVIDIA H100
FP64
1.5 TFlops26.0 TFlops
FP32
61.4 TFlops51.0 TFlops
FP16
122.8 TFlops756.5 TFlops
BF16
—756.5 TFlops
FP8
—1513.0 TFlops
INT8
122.8 TFlops1513.0 TFlops
| Precision | AMD Radeon RX 7900 XTX | NVIDIA H100 |
|---|---|---|
| FP64 | 1.5 TFlops | 26.0 TFlops |
| FP32 | 61.4 TFlops | 51.0 TFlops |
| FP16 | 122.8 TFlops | 756.5 TFlops |
| BF16 | — | 756.5 TFlops |
| FP8 | — | 1513.0 TFlops |
| INT8 | 122.8 TFlops | 1513.0 TFlops |
FLOPS by Precision
Efficiency — TDP vs FP32 Performance
Analysis
Most Efficient
AMD
Radeon RX 7900 XTX
0.17 TFLOPS/W
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