The NVIDIA A800 and H800 are both PCIe-based GPU accelerators designed for datacenter and cloud computing applications. While they share some similarities, there are key differences between them:
1. GPU Architecture:
_ A800: Based on the Ampere architecture (same as the A100)
_ H800: Based on the Hopper architecture (NVIDIA’s latest datacenter GPU architecture)
The Hopper architecture provides significant improvements in performance, power efficiency, and features compared to the Ampere architecture.
2. Compute Performance:
_ A800: Up to 5.2 TFLOPS of double-precision floating-point performance
_ H800: Up to 8.7 TFLOPS of double-precision floating-point performance
The H800 offers about 67% more compute performance than the A800.
3. Memory and Bandwidth:
_ A800: 48 GB HBM2e memory, 1575 GB/s bandwidth
_ H800: 80 GB HBM3 memory, 3150 GB