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// RUN — FITS
Can the Apple M4 Max 128GB run GePpeTto?
Yes — here's how fast and up to what context, with real measured numbers.
GePpeTto on the Apple M4 Max 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1731k | 1586.7-1913.3 t/s | ~29.1-35 (slow) |
| Q8 | yes | 1733k | 3173.3-3826.7 t/s | ~58.1-70.1 (slow) |
| Q4 | yes | 1734k | 5666.7-6833.3 t/s | ~103.8-125.2 (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 GePpeTto?▶
Yes. At Q4 it generates ~5666.7-6833.3 tok/s and fits up to 1734k context; beyond that it spills to SSD swap and slows to ~103.8-125.2 tok/s.
How much context fits?▶
At Q4, up to about 1734k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.