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// RUN — FITS
Can the Apple M4 Max 128GB run MatterGen?
Yes — here's how fast and up to what context, with real measured numbers.
MatterGen on the Apple M4 Max 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1733k | 3966.7-4783.3 t/s | ~72.6-87.6 (slow) |
| Q8 | yes | 1734k | 7933.3-9566.7 t/s | ~145.3-175.2 (slow) |
| Q4 | yes | 1735k | 14166.7-17083.3 t/s | ~259.5-312.9 (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 128GB run MatterGen?▶
Yes. At Q4 it generates ~14166.7-17083.3 tok/s and fits up to 1735k context; beyond that it spills to SSD swap and slows to ~259.5-312.9 tok/s.
How much context fits?▶
At Q4, up to about 1735k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.