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// RUN — FITS
Can the Apple M2 Ultra 192GB run Qwen2-0.5B?
Yes — here's how fast and up to what context, with real measured numbers.
Qwen2-0.5B on the Apple M2 Ultra 192GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 2599k | 544-656 t/s | ~6.8-8.2 (slow) |
| Q8 | yes | 2606k | 1088-1312 t/s | ~13.6-16.4 (slow) |
| Q4 | yes | 2610k | 1942.9-2342.9 t/s | ~24.3-29.3 (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 M2 Ultra 192GB run Qwen2-0.5B?▶
Yes. At Q4 it generates ~1942.9-2342.9 tok/s and fits up to 2610k context; beyond that it spills to SSD swap and slows to ~24.3-29.3 tok/s.
How much context fits?▶
At Q4, up to about 2610k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.