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// RUN — FITS
Can the Instinct MI455X run CodeGen-Mono 16.1B?
Yes — here's how fast and up to what context, with real measured numbers.
CodeGen-Mono 16.1B on the Instinct MI455X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 1388k | 383.5-468.7 t/s | ~0.8-1 (slow) |
| Q8 | yes | 1449k | 767-937.4 t/s | ~1.6-1.9 (slow) |
| Q4 | yes | 1476k | 1369.6-1673.9 t/s | ~2.8-3.4 (slow) |
Estimate (memory-bound). Beyond "max context" the KV cache spills to system RAM offload (depends on your system RAM) and speed drops to the "beyond" figure.
FAQ
Can the Instinct MI455X run CodeGen-Mono 16.1B?▶
Yes. At Q4 it generates ~1369.6-1673.9 tok/s and fits up to 1476k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~2.8-3.4 tok/s.
How much context fits?▶
At Q4, up to about 1476k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.