| 规格 | NVIDIA H800 | NVIDIA A2 |
|---|
| 架构 | NVIDIA Hopper | NVIDIA Ampere |
| 显存 | 80 GB HBM2e | 16 GB GDDR6 |
| 显存(94GB版) | 94 GB HBM3 | — |
| 显存带宽 | 2 TB/sec | 200 GB/s |
| 显存带宽(94GB版) | 3.9 TB/sec | — |
| FP32算力 | 51 TFLOPS | 4.5 TF |
| Tensor核心 | 456 fourth-generation Tensor Cores per GPU | — |
| CUDA核心 | 14592 FP32 CUDA Cores per GPU | — |
| 互联 | NVLink: 400 GB/s | PCIe Gen4 x8 |
| 系统接口 | PCIe Gen 5, x16 lanes | — |
| 形态 | PCIe full height/length, dual slot | 1-slot, low-profile PCIe |
| MIG切片 | Up to 7 GPU instances | — |
| 功耗TDP | 350 W | 40–60W (configurable) |
| ECC | Yes | — |
| 发布年 | 2023 | — |
| FP16算力 | — | 18 TF | 36 TF |
| INT8算力 | — | 36 TOPS | 72 TOPS |
| 视频引擎 | — | 1 video encoder / 2 video decoders (includes AV1 decode) |