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Can the Apple M1 Ultra 128GB run Llama Nemotron Super v1.5?
Yes โ here's how fast and up to what context, with real measured numbers.
Llama Nemotron Super v1.5 on the Apple M1 Ultra 128GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 48k | 5.6-6.7 t/s | ~0.1-0.1 (slow) |
| Q8 | yes | 197k | 11.1-13.4 t/s | ~0.1-0.2 (slow) |
| Q4 | yes | 263k | 19.8-23.9 t/s | ~0.2-0.3 (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 Llama Nemotron Super v1.5?โถ
Yes. At Q4 it generates ~19.8-23.9 tok/s and fits up to 263k context; beyond that it spills to SSD swap and slows to ~0.2-0.3 tok/s.
How much context fits?โถ
At Q4, up to about 263k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.