// RUN โ€” FITS

Can the Apple M2 Ultra 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 Apple M2 Ultra 192GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 1221k 48.6-58.6 t/s ~0.6-0.7 (slow)
Q8 yes 1264k 97.1-117.1 t/s ~1.2-1.5 (slow)
Q4 yes 1283k 173.5-209.2 t/s ~2.2-2.6 (slow)

Estimate (memory-bound). Beyond "max context" the KV cache spills to SSD swap and speed drops to the "beyond" figure.

FAQ

Can the Apple M2 Ultra 192GB run Phi-4-Multimodal?โ–ถ

Yes. At Q4 it generates ~173.5-209.2 tok/s and fits up to 1283k context; beyond that it spills to SSD swap and slows to ~2.2-2.6 tok/s.

How much context fits?โ–ถ

At Q4, up to about 1283k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.