// RUN โ€” FITS

Can the Apple M4 Max 128GB run DeepSeek LLM 67B?

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

DeepSeek LLM 67B on the Apple M4 Max 128GB

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 yes 143k 5.5-6.7 t/s ~0.1-0.1 (slow)
Q4 yes 232k 9.9-11.9 t/s ~0.2-0.2 (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 128GB run DeepSeek LLM 67B?โ–ถ

Yes. At Q4 it generates ~9.9-11.9 tok/s and fits up to 232k context; beyond that it spills to SSD swap and slows to ~0.2-0.2 tok/s.

How much context fits?โ–ถ

At Q4, up to about 232k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.