// RUN — FITS

Can the Apple M2 Ultra 192GB run Xinyuan (心元大模型)?

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

Xinyuan (心元大模型) on the Apple M2 Ultra 192GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 875k 19.4-23.4 t/s ~0.2-0.3 (slow)
Q8 yes 960k 38.9-46.9 t/s ~0.5-0.6 (slow)
Q4 yes 998k 69.4-83.7 t/s ~0.9-1 (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 M2 Ultra 192GB run Xinyuan (心元大模型)?

Yes. At Q4 it generates ~69.4-83.7 tok/s and fits up to 998k context; beyond that it spills to SSD swap and slows to ~0.9-1 tok/s.

How much context fits?

At Q4, up to about 998k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.