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// RUN — FITS
Can the Apple M1 Ultra 64GB run SGPT BE 5.8B?
Yes — here's how fast and up to what context, with real measured numbers.
SGPT BE 5.8B on the Apple M1 Ultra 64GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 340k | 46.9-56.6 t/s | ~0.6-0.7 (slow) |
| Q8 | yes | 384k | 93.8-113.1 t/s | ~1.2-1.4 (slow) |
| Q4 | yes | 403k | 167.5-202 t/s | ~2.1-2.5 (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 SGPT BE 5.8B?▶
Yes. At Q4 it generates ~167.5-202 tok/s and fits up to 403k context; beyond that it spills to SSD swap and slows to ~2.1-2.5 tok/s.
How much context fits?▶
At Q4, up to about 403k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.