// RUN — FITS

Can the Instinct MI455X run ERNIE-4.5-VL-424B-A47B (文心大模型4.5)?

Yes — here's how fast and up to what context, with real measured numbers.

ERNIE-4.5-VL-424B-A47B (文心大模型4.5) on the Instinct MI455X

QuantFits?Max contextSpeedBeyond context
FP16 no
Q8 no
Q4 yes 302k 52-63.6 t/s ~0.1-0.1 (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 ERNIE-4.5-VL-424B-A47B (文心大模型4.5)?

Yes. At Q4 it generates ~52-63.6 tok/s and fits up to 302k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~0.1-0.1 tok/s.

How much context fits?

At Q4, up to about 302k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.