// RUN โ€” FITS

Can the Apple M2 Ultra 64GB run StyleGAN3-R?

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

StyleGAN3-R on the Apple M2 Ultra 64GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 856k 172151.9-207594.9 t/s ~2151.9-2594.9 (slow)
Q8 yes 856k 344303.8-415189.9 t/s ~4303.8-5189.9 (slow)
Q4 yes 856k 614828.2-741410.5 t/s ~7685.4-9267.6 (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 64GB run StyleGAN3-R?โ–ถ

Yes. At Q4 it generates ~614828.2-741410.5 tok/s and fits up to 856k context; beyond that it spills to SSD swap and slows to ~7685.4-9267.6 tok/s.

How much context fits?โ–ถ

At Q4, up to about 856k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.