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// RUN — FITS
Can the Apple M1 Ultra 128GB run GLA Transformer 340M?
Yes — here's how fast and up to what context, with real measured numbers.
GLA Transformer 340M on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1725k | 800-964.7 t/s | ~10-12.1 (slow) |
| Q8 | yes | 1730k | 1600-1929.4 t/s | ~20-24.1 (slow) |
| Q4 | yes | 1732k | 2857.1-3445.4 t/s | ~35.7-43.1 (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 GLA Transformer 340M?▶
Yes. At Q4 it generates ~2857.1-3445.4 tok/s and fits up to 1732k context; beyond that it spills to SSD swap and slows to ~35.7-43.1 tok/s.
How much context fits?▶
At Q4, up to about 1732k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.