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// RUN — FITS
Can the Apple M1 Ultra 64GB run Specter?
Yes — here's how fast and up to what context, with real measured numbers.
Specter on the Apple M1 Ultra 64GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 853k | 2472.7-2981.8 t/s | ~30.9-37.3 (slow) |
| Q8 | yes | 854k | 4945.5-5963.6 t/s | ~61.8-74.5 (slow) |
| Q4 | yes | 855k | 8831.2-10649.4 t/s | ~110.4-133.1 (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 M1 Ultra 64GB run Specter?▶
Yes. At Q4 it generates ~8831.2-10649.4 tok/s and fits up to 855k context; beyond that it spills to SSD swap and slows to ~110.4-133.1 tok/s.
How much context fits?▶
At Q4, up to about 855k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.