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// RUN — FITS
Can the Apple M1 Ultra 128GB run Llemma 34B?
Yes — here's how fast and up to what context, with real measured numbers.
Llemma 34B on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 174k | 8-9.6 t/s | ~0.1-0.1 (slow) |
| Q8 | yes | 304k | 16-19.3 t/s | ~0.2-0.2 (slow) |
| Q4 | yes | 361k | 28.6-34.5 t/s | ~0.4-0.4 (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 Llemma 34B?▶
Yes. At Q4 it generates ~28.6-34.5 tok/s and fits up to 361k context; beyond that it spills to SSD swap and slows to ~0.4-0.4 tok/s.
How much context fits?▶
At Q4, up to about 361k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.