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// RUN — FITS
Can the Apple M1 Ultra 128GB run Qwen2.5 Instruct (7B)?
Yes — here's how fast and up to what context, with real measured numbers.
Qwen2.5 Instruct (7B) on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 751k | 35.7-43.1 t/s | ~0.4-0.5 (slow) |
| Q8 | yes | 809k | 71.5-86.2 t/s | ~0.9-1.1 (slow) |
| Q4 | yes | 835k | 127.7-153.9 t/s | ~1.6-1.9 (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 Qwen2.5 Instruct (7B)?▶
Yes. At Q4 it generates ~127.7-153.9 tok/s and fits up to 835k context; beyond that it spills to SSD swap and slows to ~1.6-1.9 tok/s.
How much context fits?▶
At Q4, up to about 835k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.