// RUN โ€” FITS

Can the AMD Instinct MI300X 192GB run Phi-4-Multimodal?

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

Phi-4-Multimodal on the AMD Instinct MI300X 192GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 1251k 298.1-364.4 t/s ~2.3-2.8 (slow)
Q8 yes 1293k 596.3-728.8 t/s ~4.5-5.5 (slow)
Q4 yes 1312k 1064.7-1301.3 t/s ~8-9.8 (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 MI300X 192GB run Phi-4-Multimodal?โ–ถ

Yes. At Q4 it generates ~1064.7-1301.3 tok/s and fits up to 1312k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~8-9.8 tok/s.

How much context fits?โ–ถ

At Q4, up to about 1312k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.