// RUN โ€” FITS

Can the AMD Instinct MI455X run ProtT5-XXL-BFD?

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

ProtT5-XXL-BFD on the AMD Instinct MI455X

QuantFits?Max contextSpeedBeyond context
FP16 yes 2282k 561.3-686 t/s ~1.1-1.4 (slow)
Q8 yes 2349k 1122.5-1372 t/s ~2.3-2.8 (slow)
Q4 yes 2379k 2004.5-2450 t/s ~4.1-5 (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 AMD Instinct MI455X run ProtT5-XXL-BFD?โ–ถ

Yes. At Q4 it generates ~2004.5-2450 tok/s and fits up to 2379k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~4.1-5 tok/s.

How much context fits?โ–ถ

At Q4, up to about 2379k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.