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// RUN — FITS
Can the Apple M4 Max 36GB run RWKV-4 World (7B)?
Yes — here's how fast and up to what context, with real measured numbers.
RWKV-4 World (7B) on the Apple M4 Max 36GB
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 123k | 25.1-30.3 t/s | ~0.5-0.6 (slow) |
| Q8 | yes | 179k | 50.2-60.6 t/s | ~0.9-1.1 (slow) |
| Q4 | yes | 204k | 89.7-108.1 t/s | ~1.6-2 (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 M4 Max 36GB run RWKV-4 World (7B)?▶
Yes. At Q4 it generates ~89.7-108.1 tok/s and fits up to 204k context; beyond that it spills to SSD swap and slows to ~1.6-2 tok/s.
How much context fits?▶
At Q4, up to about 204k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.