// RUN โ€” FITS

Can the Apple M4 Max 48GB run Viking?

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

Viking on the Apple M4 Max 48GB

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 yes 33k 11.3-13.6 t/s ~0.2-0.2 (slow)
Q4 yes 89k 20.1-24.2 t/s ~0.4-0.4 (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 Viking?โ–ถ

Yes. At Q4 it generates ~20.1-24.2 tok/s and fits up to 89k context; beyond that it spills to SSD swap and slows to ~0.4-0.4 tok/s.

How much context fits?โ–ถ

At Q4, up to about 89k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.