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// RUN — FITS
Can the Apple M1 Ultra 128GB run GTE-ModernColBERT-v1?
Yes — here's how fast and up to what context, with real measured numbers.
GTE-ModernColBERT-v1 on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1730k | 1825.5-2201.3 t/s | ~22.8-27.5 (slow) |
| Q8 | yes | 1733k | 3651-4402.7 t/s | ~45.6-55 (slow) |
| Q4 | yes | 1734k | 6519.7-7861.9 t/s | ~81.5-98.3 (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 128GB run GTE-ModernColBERT-v1?▶
Yes. At Q4 it generates ~6519.7-7861.9 tok/s and fits up to 1734k context; beyond that it spills to SSD swap and slows to ~81.5-98.3 tok/s.
How much context fits?▶
At Q4, up to about 1734k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.