// RUN โ€” FITS

Can the Apple M1 Ultra 128GB run bge-reranker-large?

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

bge-reranker-large on the Apple M1 Ultra 128GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 1718k 485.7-585.7 t/s ~6.1-7.3 (slow)
Q8 yes 1726k 971.4-1171.4 t/s ~12.1-14.6 (slow)
Q4 yes 1730k 1734.7-2091.8 t/s ~21.7-26.1 (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 bge-reranker-large?โ–ถ

Yes. At Q4 it generates ~1734.7-2091.8 tok/s and fits up to 1730k context; beyond that it spills to SSD swap and slows to ~21.7-26.1 tok/s.

How much context fits?โ–ถ

At Q4, up to about 1730k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.