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// RUN — FITS
Can the Apple M1 Ultra 64GB run Ovis2.5 2B?
Yes — here's how fast and up to what context, with real measured numbers.
Ovis2.5 2B on the Apple M1 Ultra 64GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 795k | 136-164 t/s | ~1.7-2.1 (slow) |
| Q8 | yes | 826k | 272-328 t/s | ~3.4-4.1 (slow) |
| Q4 | yes | 839k | 485.7-585.7 t/s | ~6.1-7.3 (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 64GB run Ovis2.5 2B?▶
Yes. At Q4 it generates ~485.7-585.7 tok/s and fits up to 839k context; beyond that it spills to SSD swap and slows to ~6.1-7.3 tok/s.
How much context fits?▶
At Q4, up to about 839k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.