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// RUN — FITS
Can the Apple M4 Max 48GB 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 M4 Max 48GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 628k | 677.5-817 t/s | ~12.4-15 (slow) |
| Q8 | yes | 632k | 1355-1634 t/s | ~24.8-29.9 (slow) |
| Q4 | yes | 634k | 2419.7-2917.9 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 M4 Max 48GB run base LM+GNN+kNN?▶
Yes. At Q4 it generates ~2419.7-2917.9 tok/s and fits up to 634k 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 634k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.