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// RUN — FITS
Can the Apple M2 Ultra 192GB run AntiFormer?
Yes — here's how fast and up to what context, with real measured numbers.
AntiFormer on the Apple M2 Ultra 192GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 2613k | 11025.3-13295.2 t/s | ~137.8-166.2 (slow) |
| Q8 | yes | 2613k | 22050.5-26590.4 t/s | ~275.6-332.4 (slow) |
| Q4 | yes | 2614k | 39376-47482.8 t/s | ~492.2-593.5 (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 M2 Ultra 192GB run AntiFormer?▶
Yes. At Q4 it generates ~39376-47482.8 tok/s and fits up to 2614k context; beyond that it spills to SSD swap and slows to ~492.2-593.5 tok/s.
How much context fits?▶
At Q4, up to about 2614k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.