// RUN โ€” FITS

Can the AMD Instinct MI325X run Pythia-6.9b?

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

Pythia-6.9b on the AMD Instinct MI325X

QuantFits?Max contextSpeedBeyond context
FP16 yes 1680k 273.9-334.8 t/s ~1.8-2.2 (slow)
Q8 yes 1733k 547.8-669.6 t/s ~3.7-4.5 (slow)
Q4 yes 1756k 978.3-1195.7 t/s ~6.5-8 (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 Pythia-6.9b?โ–ถ

Yes. At Q4 it generates ~978.3-1195.7 tok/s and fits up to 1756k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~6.5-8 tok/s.

How much context fits?โ–ถ

At Q4, up to about 1756k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.