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// RUN — FITS
Can the Apple M1 Ultra 128GB run SANA 1.5 4.8B?
Yes — here's how fast and up to what context, with real measured numbers.
SANA 1.5 4.8B on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1588k | 56.7-68.3 t/s | ~0.7-0.9 (slow) |
| Q8 | yes | 1662k | 113.3-136.7 t/s | ~1.4-1.7 (slow) |
| Q4 | yes | 1694k | 202.4-244 t/s | ~2.5-3.1 (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 SANA 1.5 4.8B?▶
Yes. At Q4 it generates ~202.4-244 tok/s and fits up to 1694k context; beyond that it spills to SSD swap and slows to ~2.5-3.1 tok/s.
How much context fits?▶
At Q4, up to about 1694k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.