// RUN โ€” FITS

Can the Apple M4 Max 48GB run IBM Granite 4.1?

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

IBM Granite 4.1 on the Apple M4 Max 48GB

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 yes 45k 12.4-14.9 t/s ~0.2-0.3 (slow)
Q4 yes 95k 22.1-26.7 t/s ~0.4-0.5 (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 M4 Max 48GB run IBM Granite 4.1?โ–ถ

Yes. At Q4 it generates ~22.1-26.7 tok/s and fits up to 95k context; beyond that it spills to SSD swap and slows to ~0.4-0.5 tok/s.

How much context fits?โ–ถ

At Q4, up to about 95k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.