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// RUN — FITS
Can the Apple M2 Ultra 192GB run Pythia-70m?
Yes — here's how fast and up to what context, with real measured numbers.
Pythia-70m on the Apple M2 Ultra 192GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 2612k | 3885.7-4685.7 t/s | ~48.6-58.6 (slow) |
| Q8 | yes | 2613k | 7771.4-9371.4 t/s | ~97.1-117.1 (slow) |
| Q4 | yes | 2613k | 13877.6-16734.7 t/s | ~173.5-209.2 (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 M2 Ultra 192GB run Pythia-70m?▶
Yes. At Q4 it generates ~13877.6-16734.7 tok/s and fits up to 2613k context; beyond that it spills to SSD swap and slows to ~173.5-209.2 tok/s.
How much context fits?▶
At Q4, up to about 2613k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.