-
- 名稱
- AMD Instinct™ MI455X
- 系列
- Instinct
- 系列
- Instinct MI400 Series
- 推出日期
- 7/23/2026
-
- 顯示卡架構
- CDNA5
- Lithography
- TSMC 2nm | 3nm FinFET
- Work Group Processors
- 256
- 峰值引擎時脈
- 2400 MHz
- Peak OCP MXFP4 Performance
- 40.3 PFLOPs
- Peak OCP MXFP6 Performance
- 20.1 PFLOPs
- Peak OCP MXFP8 Performance
- 20.1 PFLOPs
- Peak OCP FP8 Performance
- 20.1 PFLOPs
- Peak Vector FP16 Performance
- 315 TFLOPs
- Peak Matrix FP16 Performance
- 5 PFLOPs
- Peak Matrix FP16 Performance with Structured Sparsity
- 10.1 PFLOPs
- Peak Matrix FP32 Performance
- 315 TFLOPs
- Peak Vector FP32 Performance
- 315 TFLOPs
- Peak Matrix FP64 Performance
- 5 TFLOPs
- Peak Vector FP64 Performance
- 5 TFLOPs
- 峰值 INT8 矩陣效能
- 5 POPs
- 採結構化稀疏性的峰值 INT8 矩陣效能
- 10.1 POPs
- Peak bfloat16 (BF16) Matrix Performance
- 5 PFLOPs
- Peak bfloat16 (BF16) Matrix Performance with Structured Sparsity
- 10.1 PFLOPs
- 電晶體數
- 320 Billion
- 作業系統支援
- Linux x86 64-Bit
-
- 專用記憶體大小
- 432 GB
- 專用記憶體類型
- HBM4
- L2 快取
- 192 MB
- Stacks of Memory
- 12
- 峰值記憶體頻寬
- 23.3 TB/s
- 記憶體 ECC 支援
- 是
-
- 顯示卡尺寸外型
- Enhanced Accelerator Module (EAM)
- Scale-up (Peak) UALoE Bi-directional Bandwidth
- 3.6 TB/s
- Scale-out (Peak) UALink™ Bi-directional Bandwidth
- 600 GB/s
- Scale-out Bus Type
- UALink™
- 散熱
- Direct Liquid Cooling (DLC)
-
- 受支援的技術
- AMD CDNA™ 5 Architecture , AMD ROCm™ - Ecosystem without Borders , UALink™, UALoE
- RAS 支援
- 是
- SR-IOV
- 是
-
- OpenMP®
- 是
- OpenCL™
- 是
- HIP
- 是
- ROCm™ Open Ecosystem
-
Yes
- Vulkan®
- 否
-
- TensorFlow
- 是
- PyTorch
- 是
- ONYX-RT
- 是
- SGLang
- 是
- JAX
- 是
- Triton
- 是
- Kokkos
- 是
- RAJA
- 是
AMD Instinct™ MI455X 顯示卡
AMD Instinct™ MI455X 顯示卡採用第 5 代 AMD CDNA™ 架構，專為 AMD Helios 機架規模解決方案而設計，可為 AI 推論、訓練與微調提供領先效能與現代化功能。
