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// RUN — FITS
Can the Apple M1 Ultra 128GB run KataGo?
Yes — here's how fast and up to what context, with real measured numbers.
KataGo on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1735k | 108800-131200 t/s | ~1360-1640 (slow) |
| Q8 | yes | 1735k | 217600-262400 t/s | ~2720-3280 (slow) |
| Q4 | yes | 1735k | 388571.4-468571.4 t/s | ~4857.1-5857.1 (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 128GB run KataGo?▶
Yes. At Q4 it generates ~388571.4-468571.4 tok/s and fits up to 1735k context; beyond that it spills to SSD swap and slows to ~4857.1-5857.1 tok/s.
How much context fits?▶
At Q4, up to about 1735k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.