// RUN โ€” FITS

Can the AMD Instinct MI325X run Tulu 3 405B?

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

Tulu 3 405B on the AMD Instinct MI325X

QuantFits?Max contextSpeedBeyond context
FP16 no โ€” โ€” โ€”
Q8 no โ€” โ€” โ€”
Q4 yes 14k 16.7-20.4 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 AMD Instinct MI325X run Tulu 3 405B?โ–ถ

Yes. At Q4 it generates ~16.7-20.4 tok/s and fits up to 14k 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?โ–ถ

At Q4, up to about 14k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.