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// RUN — FITS
Can the Apple M4 Max 128GB run IBM Granite 4.1?
Yes — here's how fast and up to what context, with real measured numbers.
IBM Granite 4.1 on the Apple M4 Max 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 205k | 6.2-7.5 t/s | ~0.1-0.1 (slow) |
| Q8 | yes | 319k | 12.4-14.9 t/s | ~0.2-0.3 (slow) |
| Q4 | yes | 370k | 22.1-26.7 t/s | ~0.4-0.5 (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 IBM Granite 4.1?▶
Yes. At Q4 it generates ~22.1-26.7 tok/s and fits up to 370k context; beyond that it spills to SSD swap and slows to ~0.4-0.5 tok/s.
How much context fits?▶
At Q4, up to about 370k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.