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// RUN — FITS
Can the Apple M1 Ultra 128GB run base LM+GNN+kNN?
Yes — here's how fast and up to what context, with real measured numbers.
base LM+GNN+kNN on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1727k | 992.7-1197.1 t/s | ~12.4-15 (slow) |
| Q8 | yes | 1731k | 1985.4-2394.2 t/s | ~24.8-29.9 (slow) |
| Q4 | yes | 1733k | 3545.4-4275.3 t/s | ~44.3-53.4 (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 base LM+GNN+kNN?▶
Yes. At Q4 it generates ~3545.4-4275.3 tok/s and fits up to 1733k context; beyond that it spills to SSD swap and slows to ~44.3-53.4 tok/s.
How much context fits?▶
At Q4, up to about 1733k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.