// RUN โ€” FITS

Can the AMD Instinct MI300X 192GB run Qwen3-8B?

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

Qwen3-8B on the AMD Instinct MI300X 192GB

QuantFits?Max contextSpeedBeyond context
FP16 yes 1211k 203.6-248.8 t/s ~1.5-1.9 (slow)
Q8 yes 1274k 407.2-497.7 t/s ~3.1-3.8 (slow)
Q4 yes 1301k 727.1-888.7 t/s ~5.5-6.7 (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 MI300X 192GB run Qwen3-8B?โ–ถ

Yes. At Q4 it generates ~727.1-888.7 tok/s and fits up to 1301k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~5.5-6.7 tok/s.

How much context fits?โ–ถ

At Q4, up to about 1301k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.