// RUN โ€” FITS

Can the Apple M4 Max 64GB run GePpeTto?

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

GePpeTto on the Apple M4 Max 64GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 852k 1586.7-1913.3 t/s ~29.1-35 (slow)
Q8 yes 854k 3173.3-3826.7 t/s ~58.1-70.1 (slow)
Q4 yes 855k 5666.7-6833.3 t/s ~103.8-125.2 (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 64GB run GePpeTto?โ–ถ

Yes. At Q4 it generates ~5666.7-6833.3 tok/s and fits up to 855k context; beyond that it spills to SSD swap and slows to ~103.8-125.2 tok/s.

How much context fits?โ–ถ

At Q4, up to about 855k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.