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// RUN — FITS
Can the Apple M4 Max 48GB run Fugaku-LLM?
Yes — here's how fast and up to what context, with real measured numbers.
Fugaku-LLM on the Apple M4 Max 48GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 96k | 14.3-17.2 t/s | ~0.3-0.3 (slow) |
| Q8 | yes | 175k | 28.6-34.4 t/s | ~0.5-0.6 (slow) |
| Q4 | yes | 210k | 51-61.5 t/s | ~0.9-1.1 (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 M4 Max 48GB run Fugaku-LLM?▶
Yes. At Q4 it generates ~51-61.5 tok/s and fits up to 210k context; beyond that it spills to SSD swap and slows to ~0.9-1.1 tok/s.
How much context fits?▶
At Q4, up to about 210k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.