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Can the Apple M3 Max 48GB run MPT-30B?
Yes โ here's how fast and up to what context, with real measured numbers.
MPT-30B on the Apple M3 Max 48GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | no | โ | โ | โ |
| Q8 | yes | 45k | 9.1-10.9 t/s | ~0.2-0.3 (slow) |
| Q4 | yes | 95k | 16.2-19.5 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 M3 Max 48GB run MPT-30B?โถ
Yes. At Q4 it generates ~16.2-19.5 tok/s and fits up to 95k context; beyond that it spills to SSD swap and slows to ~0.4-0.5 tok/s.
How much context fits?โถ
At Q4, up to about 95k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.