Product Compare
NVIDIA H100 SXM5 80 GB vs NVIDIA A800 PCIe 40 GB
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Oct 2022 | Nov 2022 |
| Generation | Server Hopper | Ampere |
| Type | AI GPU | AI GPU |
| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x16 |
| Clock Speeds | ||
| Base Clock | 1590 MHz | 765 MHz |
| Boost Clock | 1980 MHz | 1410 MHz |
| Memory Clock | 1313 MHz | 1215 MHz |
| Memory | ||
| Memory Size | 80GB | 40GB |
| Memory Type | HBM3 | HBM2e |
| Memory Bus | 5120bit | 5120bit |
| Bandwidth | 3.36TB/s | 1555GB/s |
| Render Config | ||
| SM Count | 132 | 108 |
| Shading Units | 16896 | 6912 |
| TMUs | 528 | 432 |
| ROPs | 24 | 160 |
| Tensor Cores | 528 | 432 |
| L1 Cache | 256 KB (per SM) | 192 KB (per SM) |
| L2 Cache | 50 MB | 40 MB |
| Theoretical Performance | ||
| Pixel Rate | 47.52 GPixel/s | 225.6 GPixel/s |
| Texture Rate | 1045 GTexel/s | 609.1 GTexel/s |
| FP16 (half) | 267.6 TFLOPS | 77.97 TFLOPS |
| FP32 (float) | 66.91 TFLOPS | 19.49 TFLOPS |
| FP64 (double) | 33.45 TFLOPS | 9.746 TFLOPS |
| Graphics Processor | ||
| GPU Name | GH100 | GA100 |
| Architecture | Hopper | Ampere |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 7 nm |
| Transistors | 80 billion | 54.2 billion |
| Die Size | 814 mm² | 826 mm² |
| Board Design | ||
| TDP | 700W | 250W |
| Suggested PSU | 1100 W | 600 W |
| Outputs | No outputs | No outputs |
| Power Connectors | None | 8-pin EPS |
| Graphics Features | ||
| DirectX | N/A | N/A |
| OpenGL | N/A | N/A |
| OpenCL | 3.0 | 3.0 |
| Vulkan | N/A | N/A |
| CUDA | 9.0 | 8.0 |
| Shader Model | N/A | N/A |