// RUN โ€” FITS

Can the Apple M1 Ultra 128GB run KoGPT?

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

KoGPT on the Apple M1 Ultra 128GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 773k 44.1-53.2 t/s ~0.6-0.7 (slow)
Q8 yes 820k 88.2-106.4 t/s ~1.1-1.3 (slow)
Q4 yes 841k 157.5-190 t/s ~2-2.4 (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 M1 Ultra 128GB run KoGPT?โ–ถ

Yes. At Q4 it generates ~157.5-190 tok/s and fits up to 841k context; beyond that it spills to SSD swap and slows to ~2-2.4 tok/s.

How much context fits?โ–ถ

At Q4, up to about 841k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.