// RUN โ€” FITS

Can the Instinct MI440X run Stable Diffusion XL (SDXL)?

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

Stable Diffusion XL (SDXL) on the Instinct MI440X

QuantFits?Max contextSpeedBeyond context
FP16 yes 5938k 1815.9-2219.4 t/s ~3.7-4.5 (slow)
Q8 yes 5990k 3631.8-4438.8 t/s ~7.4-9.1 (slow)
Q4 yes 6013k 6485.3-7926.5 t/s ~13.2-16.2 (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 Instinct MI440X run Stable Diffusion XL (SDXL)?โ–ถ

Yes. At Q4 it generates ~6485.3-7926.5 tok/s and fits up to 6013k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~13.2-16.2 tok/s.

How much context fits?โ–ถ

At Q4, up to about 6013k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.