Instinct MI325X
AMDdatacenter| Overview | |
|---|---|
| Architecture | CDNA 3 (2024) |
| Launch date | 2024-10-10 |
| Process node | TSMC 5nm | 6nm FinFET |
| Transistor count | 153B |
| GPU target (gfx) | gfx942 |
| Memory | |
| VRAM | 256 GB HBM3E |
| Memory bandwidth | 6,000 GB/s |
| Cache | 256 MB |
| ECC | Yes |
| Compute — vector | |
| FP64 | 81.7 TFLOPS |
| FP32 | 163.4 TFLOPS |
| Compute — matrix / tensor | |
| FP64 | 163.4 TFLOPS |
| TF32 | 653.7 TFLOPS |
| BF16 | 1,307.4 TFLOPS |
| FP16 (dense / sparse) | 1,307.4 / 2,614.9 TFLOPS |
| FP8 (dense / sparse) | 2,614.9 / 5,229.8 TFLOPS |
| INT8 (dense / sparse) | 2,600 / 5,220 TOPS |
| Cores & clocks | |
| Compute Units | 304 |
| Shader cores | 19,456 |
| Matrix / Tensor cores | 1,216 |
| Peak clock | 2,100 MHz |
| Board & system | |
| TDP | 1000 W |
| Form factor | OAM Module |
| Cooling | Passive OAM |
| PCIe | PCIe 5.0 x16 |
| Interconnect | Infinity Fabric — 128 GB/s |
| Multi-instance support | SR-IOV |
Compatible ROCm versions
Same CDNA3 compute die as MI300X (identical compute-unit/matrix-core counts and dense TFLOPS figures) — MI325X is a memory upgrade (192GB→256GB, HBM3→HBM3E, 5.3TB/s→6TB/s bandwidth) at a higher power envelope (1,000W vs. 750W). Source: AMD's official product/spec page (amd.com/en/products/accelerators/instinct/mi300/mi325x.html, "Expand All" spec accordion), pulled 2026-09-01.
All compute-throughput fields (fp64/fp32/tf32/bf16/fp16/fp8/int8 and their Matrix/Sparse variants) mirror MI300X's file exactly — same sourcing caveats apply: fp16TFLOPS/fp8TFLOPS keep this collection's brochure-precision decimals (1,307.4/2,614.9, sparse 2,614.9/5,229.8) over the page's rounded PFLOP figures; fp64 vector (81.7) and matrix (163.4) genuinely differ 2x on this die; tf32TFLOPS (653.7, dense) has an unmodeled ~2x sparse variant; bf16TFLOPS is set equal to fp16TFLOPS per the page's identical PFLOP figures; int8TOPS/int8TOPSSparse (2,600/5,220 POPs) are page-native precision only.
tdpWatts (1000) is labelled "Typical Board Power (TBP)" on the page but the value itself reads "1000W Peak". No msrpUSD — AMD doesn't publish Instinct list prices.