// RUN โ€” FITS

Can the AMD Radeon RX 9070 XT run Stable Diffusion XL (SDXL)?

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

Stable Diffusion XL (SDXL) on the AMD Radeon RX 9070 XT

QuantFits?Max contextSpeedBeyond context
FP16 yes 98k 59.7-72.9 t/s ~3.7-4.5 (slow)
Q8 yes 150k 119.3-145.8 t/s ~7.4-9.1 (slow)
Q4 yes 173k 213.1-260.4 t/s ~13.2-16.2 (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 Radeon RX 9070 XT run Stable Diffusion XL (SDXL)?โ–ถ

Yes. At Q4 it generates ~213.1-260.4 tok/s and fits up to 173k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~13.2-16.2 tok/s.

How much context fits?โ–ถ

At Q4, up to about 173k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.