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// RUN — FITS
Can the Apple M1 Ultra 128GB run Gemma 2B?
Yes — here's how fast and up to what context, with real measured numbers.
Gemma 2B on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1658k | 108.5-130.9 t/s | ~1.4-1.6 (slow) |
| Q8 | yes | 1697k | 217-261.7 t/s | ~2.7-3.3 (slow) |
| Q4 | yes | 1714k | 387.6-467.4 t/s | ~4.8-5.8 (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 Gemma 2B?▶
Yes. At Q4 it generates ~387.6-467.4 tok/s and fits up to 1714k context; beyond that it spills to SSD swap and slows to ~4.8-5.8 tok/s.
How much context fits?▶
At Q4, up to about 1714k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.