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// RUN — FITS
Can the Apple M2 Ultra 64GB run ProtRNA?
Yes — here's how fast and up to what context, with real measured numbers.
ProtRNA on the Apple M2 Ultra 64GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 836k | 418.5-504.6 t/s | ~5.2-6.3 (slow) |
| Q8 | yes | 846k | 836.9-1009.2 t/s | ~10.5-12.6 (slow) |
| Q4 | yes | 850k | 1494.5-1802.2 t/s | ~18.7-22.5 (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 64GB run ProtRNA?▶
Yes. At Q4 it generates ~1494.5-1802.2 tok/s and fits up to 850k context; beyond that it spills to SSD swap and slows to ~18.7-22.5 tok/s.
How much context fits?▶
At Q4, up to about 850k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.