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Can the Apple M1 Ultra 128GB run Hybrid H3-125M?
Yes โ here's how fast and up to what context, with real measured numbers.
Hybrid H3-125M on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1731k | 2176-2624 t/s | ~27.2-32.8 (slow) |
| Q8 | yes | 1733k | 4352-5248 t/s | ~54.4-65.6 (slow) |
| Q4 | yes | 1734k | 7771.4-9371.4 t/s | ~97.1-117.1 (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 M1 Ultra 128GB run Hybrid H3-125M?โถ
Yes. At Q4 it generates ~7771.4-9371.4 tok/s and fits up to 1734k context; beyond that it spills to SSD swap and slows to ~97.1-117.1 tok/s.
How much context fits?โถ
At Q4, up to about 1734k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.