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// RUN — FITS
Can the AMD Instinct MI325X run Stable Diffusion 3.5 Large?
Yes — here's how fast and up to what context, with real measured numbers.
Stable Diffusion 3.5 Large on the AMD Instinct MI325X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1662k | 233.3-285.2 t/s | ~1.6-1.9 (slow) |
| Q8 | yes | 1724k | 466.7-570.4 t/s | ~3.1-3.8 (slow) |
| Q4 | yes | 1751k | 833.3-1018.5 t/s | ~5.6-6.8 (slow) |
Estimate (memory-bound). Beyond "max context" the KV cache spills to system RAM offload (depends on your system RAM) and speed drops to the "beyond" figure.
FAQ
Can the AMD Instinct MI325X run Stable Diffusion 3.5 Large?▶
Yes. At Q4 it generates ~833.3-1018.5 tok/s and fits up to 1751k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~5.6-6.8 tok/s.
How much context fits?▶
At Q4, up to about 1751k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.