// RUN โ€” FITS

Can the AMD Instinct MI325X run Flux.1 [dev]?

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

Flux.1 [dev] on the AMD Instinct MI325X

QuantFits?Max contextSpeedBeyond context
FP16 yes 1282k 157.5-192.5 t/s ~1.1-1.3 (slow)
Q8 yes 1355k 315-385 t/s ~2.1-2.6 (slow)
Q4 yes 1387k 562.5-687.5 t/s ~3.8-4.6 (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 Flux.1 [dev]?โ–ถ

Yes. At Q4 it generates ~562.5-687.5 tok/s and fits up to 1387k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~3.8-4.6 tok/s.

How much context fits?โ–ถ

At Q4, up to about 1387k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.