// RUN — FITS

Can the Apple M3 Max 48GB run Stable Diffusion XL (SDXL)?

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

Stable Diffusion XL (SDXL) on the Apple M3 Max 48GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 533k 40-48.2 t/s ~1-1.2 (slow)
Q8 yes 584k 80-96.5 t/s ~2-2.4 (slow)
Q4 yes 607k 142.9-172.3 t/s ~3.6-4.3 (slow)

Estimate (memory-bound). Beyond "max context" the KV cache spills to SSD swap and speed drops to the "beyond" figure.

→ All models on the Apple M3 Max 48GB → Stable Diffusion XL (SDXL) specs → Other hardware

FAQ

Can the Apple M3 Max 48GB run Stable Diffusion XL (SDXL)?▶

Yes. At Q4 it generates ~142.9-172.3 tok/s and fits up to 607k context; beyond that it spills to SSD swap and slows to ~3.6-4.3 tok/s.

How much context fits?▶

At Q4, up to about 607k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.