| 规格 | AMD Instinct MI100 | AMD Instinct MI250X |
|---|
| 架构 | CDNA / gfx908 (CDNA1 世代开山, TSMC 7nm FinFET) | CDNA2 (双GCD双die封装, TSMC 6nm FinFET) |
| 显存 | 32GB HBM2 (Full-Chip ECC, 4 stacks) | 128GB HBM2e (Full-Chip ECC, 双die合计) |
| 显存带宽 | 1.2 TB/s (官方页口径; ROCm 架构文档 1.228 TB/s @1.2GHz) | 3.2 TB/s (1.6TB/s×双GCD) |
| 显存位宽 | 4096bit (4 stacks × 1024bit) | 8192bit (双die合计) |
| 算力 | FP64 11.5 / FP32 23.1 / FP32 Matrix 46.1 / FP16 184.6 / BF16 92.3 / INT8·INT4 92.3 TOPS (TFLOPS, Peak Engine Clock 1502MHz) | FP64 47.9 / FP64 Matrix 95.7 / FP32 47.9 / FP16·BF16 383 / INT8·INT4 383 TOPS (TFLOPS, 双die合计, Peak Engine Clock 1700MHz) |
| 计算单元 | 120 CU / 7,680 流处理器 (8 Shader Engine × 15 CU, Matrix Core) | 220 CU / 14080 流处理器 (双GCD合计) |
| 功耗 | 300W Peak (TDP, 被动散热) | 500W (TDP) | 560W Peak |
| 互联 | Infinity Fabric 3链 (峰值92GB/s/链, 2-4卡hive) / PCIe 4.0 x16 (兼容 3.0 x16) | Infinity Fabric 8链 (峰值100GB/s/链) / PCIe 4.0 x16 |
| 发布年 | 2020 (官方 Launch Date 11/16/2020) | 2021 (官方Launch Date 11/08/21) |
| 形态 | PCIe Add-in Card (全高全长双槽 10.5"/267mm, 被动散热) | OAM Module, Passive OAM (被动散热) |