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// RUN — FITS
Can the AMD Ryzen AI Max+ 395 run CPM-Large?
Yes — here's how fast and up to what context, with real measured numbers.
CPM-Large on the AMD Ryzen AI Max+ 395
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1656k | 31-37.9 t/s | ~1.2-1.5 (slow) |
| Q8 | yes | 1695k | 62-75.8 t/s | ~2.4-3 (slow) |
| Q4 | yes | 1713k | 110.8-135.4 t/s | ~4.3-5.3 (slow) |
Estimate (memory-bound). Beyond "max context" the KV cache spills to SSD swap and speed drops to the "beyond" figure.
FAQ
Can the AMD Ryzen AI Max+ 395 run CPM-Large?▶
Yes. At Q4 it generates ~110.8-135.4 tok/s and fits up to 1713k context; beyond that it spills to SSD swap and slows to ~4.3-5.3 tok/s.
How much context fits?▶
At Q4, up to about 1713k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.