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// RUN — FITS
Can the Apple M1 Ultra 128GB run DeepSeek-R1-Distill-Qwen-1.5B?
Yes — here's how fast and up to what context, with real measured numbers.
DeepSeek-R1-Distill-Qwen-1.5B on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1681k | 152.8-184.3 t/s | ~1.9-2.3 (slow) |
| Q8 | yes | 1708k | 305.6-368.5 t/s | ~3.8-4.6 (slow) |
| Q4 | yes | 1720k | 545.7-658.1 t/s | ~6.8-8.2 (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 DeepSeek-R1-Distill-Qwen-1.5B?▶
Yes. At Q4 it generates ~545.7-658.1 tok/s and fits up to 1720k context; beyond that it spills to SSD swap and slows to ~6.8-8.2 tok/s.
How much context fits?▶
At Q4, up to about 1720k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.