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// RUN — FITS
Can the Apple M2 Ultra 192GB run ProtBERT-BFD?
Yes — here's how fast and up to what context, with real measured numbers.
ProtBERT-BFD on the Apple M2 Ultra 192GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 2601k | 647.6-781 t/s | ~8.1-9.8 (slow) |
| Q8 | yes | 2607k | 1295.2-1561.9 t/s | ~16.2-19.5 (slow) |
| Q4 | yes | 2610k | 2312.9-2789.1 t/s | ~28.9-34.9 (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 M2 Ultra 192GB run ProtBERT-BFD?▶
Yes. At Q4 it generates ~2312.9-2789.1 tok/s and fits up to 2610k context; beyond that it spills to SSD swap and slows to ~28.9-34.9 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.