// RUN โ€” FITS

Can the AMD Instinct MI455X run LFM2.5-Embedding-350M?

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

LFM2.5-Embedding-350M on the AMD Instinct MI455X

QuantFits?Max contextSpeedBeyond context
FP16 yes 6031k 17640-21560 t/s ~36-44 (slow)
Q8 yes 6036k 35280-43120 t/s ~72-88 (slow)
Q4 yes 6039k 63000-77000 t/s ~128.6-157.1 (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 AMD Instinct MI455X run LFM2.5-Embedding-350M?โ–ถ

Yes. At Q4 it generates ~63000-77000 tok/s and fits up to 6039k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~128.6-157.1 tok/s.

How much context fits?โ–ถ

At Q4, up to about 6039k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.