// RUN โ€” FITS

Can the AMD Instinct MI300X 192GB run Mixtral 8x22B?

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

Mixtral 8x22B on the AMD Instinct MI300X 192GB

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 yes 104k 23.7-28.9 t/s ~0.2-0.2 (slow)
Q4 yes 294k 42.3-51.7 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 AMD Instinct MI300X 192GB run Mixtral 8x22B?โ–ถ

Yes. At Q4 it generates ~42.3-51.7 tok/s and fits up to 294k 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 294k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.