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Can the Instinct MI440X run MegaMolBART?
Yes — here's how fast and up to what context, with real measured numbers.
MegaMolBART on the Instinct MI440X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 6040k | 137200-167688.9 t/s | ~280-342.2 (slow) |
| Q8 | yes | 6041k | 274400-335377.8 t/s | ~560-684.4 (slow) |
| Q4 | yes | 6041k | 490000-598888.9 t/s | ~1000-1222.2 (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 MI440X run MegaMolBART?▶
Yes. At Q4 it generates ~490000-598888.9 tok/s and fits up to 6041k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~1000-1222.2 tok/s.
How much context fits?▶
At Q4, up to about 6041k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.