// RUN โ€” FITS

Can the Instinct MI440X run Mixtral 8x22B?

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

Mixtral 8x22B on the Instinct MI440X

QuantFits?Max contextSpeedBeyond context
FP16 yes 348k 43.8-53.5 t/s ~0.1-0.1 (slow)
Q8 yes 778k 87.6-107 t/s ~0.2-0.2 (slow)
Q4 yes 967k 156.4-191.1 t/s ~0.3-0.4 (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 Mixtral 8x22B?โ–ถ

Yes. At Q4 it generates ~156.4-191.1 tok/s and fits up to 967k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~0.3-0.4 tok/s.

How much context fits?โ–ถ

At Q4, up to about 967k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.