// RUN โ€” FITS

Can the AMD Instinct MI325X run Stable Diffusion 3.5 Medium?

Yes โ€” here's how fast and up to what context, with real measured numbers.

Stable Diffusion 3.5 Medium on the AMD Instinct MI325X

QuantFits?Max contextSpeedBeyond context
FP16 yes 3495k 756-924 t/s ~5-6.2 (slow)
Q8 yes 3533k 1512-1848 t/s ~10.1-12.3 (slow)
Q4 yes 3549k 2700-3300 t/s ~18-22 (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 Medium?โ–ถ

Yes. At Q4 it generates ~2700-3300 tok/s and fits up to 3549k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~18-22 tok/s.

How much context fits?โ–ถ

At Q4, up to about 3549k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.