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// RUN — FITS
Can the Apple M2 Ultra 64GB run ProteinBERT?
Yes — here's how fast and up to what context, with real measured numbers.
ProteinBERT on the Apple M2 Ultra 64GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 856k | 17000-20500 t/s | ~212.5-256.3 (slow) |
| Q8 | yes | 856k | 34000-41000 t/s | ~425-512.5 (slow) |
| Q4 | yes | 856k | 60714.3-73214.3 t/s | ~758.9-915.2 (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 64GB run ProteinBERT?▶
Yes. At Q4 it generates ~60714.3-73214.3 tok/s and fits up to 856k context; beyond that it spills to SSD swap and slows to ~758.9-915.2 tok/s.
How much context fits?▶
At Q4, up to about 856k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.