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// RUN — FITS
Can the Apple M4 Max 48GB run Wuerstchen?
Yes — here's how fast and up to what context, with real measured numbers.
Wuerstchen on the Apple M4 Max 48GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 606k | 185.6-223.9 t/s | ~3.4-4.1 (slow) |
| Q8 | yes | 621k | 371.3-447.7 t/s | ~6.8-8.2 (slow) |
| Q4 | yes | 628k | 663-799.5 t/s | ~12.1-14.6 (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 M4 Max 48GB run Wuerstchen?▶
Yes. At Q4 it generates ~663-799.5 tok/s and fits up to 628k context; beyond that it spills to SSD swap and slows to ~12.1-14.6 tok/s.
How much context fits?▶
At Q4, up to about 628k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.