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// RUN — FITS
Can the Apple M1 Ultra 64GB run Jamba?
Yes — here's how fast and up to what context, with real measured numbers.
Jamba on the Apple M1 Ultra 64GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | no | — | — | — |
| Q8 | yes | 14k | 10.5-12.7 t/s | ~0.1-0.2 (slow) |
| Q4 | yes | 83k | 18.8-22.7 t/s | ~0.2-0.3 (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 Jamba?▶
Yes. At Q4 it generates ~18.8-22.7 tok/s and fits up to 83k context; beyond that it spills to SSD swap and slows to ~0.2-0.3 tok/s.
How much context fits?▶
At Q4, up to about 83k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.