// RUN โ€” FITS

Can the AMD Instinct MI325X run LUXIA-21.4B-Alignment?

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

LUXIA-21.4B-Alignment on the AMD Instinct MI325X

QuantFits?Max contextSpeedBeyond context
FP16 yes 729k 88.3-107.9 t/s ~0.6-0.7 (slow)
Q8 yes 811k 176.6-215.9 t/s ~1.2-1.4 (slow)
Q4 yes 847k 315.4-385.5 t/s ~2.1-2.6 (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 MI325X run LUXIA-21.4B-Alignment?โ–ถ

Yes. At Q4 it generates ~315.4-385.5 tok/s and fits up to 847k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~2.1-2.6 tok/s.

How much context fits?โ–ถ

At Q4, up to about 847k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.