// RUN โ€” FITS

Can the NVIDIA GeForce RTX 5090 run Stable Diffusion (LDM-KL-8-G)?

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

Stable Diffusion (LDM-KL-8-G) on the NVIDIA GeForce RTX 5090

QuantFits?Max contextSpeedBeyond context
FP16 yes 382k 451.1-537.6 t/s ~10.1-12 (slow)
Q8 yes 404k 902.2-1075.2 t/s ~20.1-24 (slow)
Q4 yes 414k 1611-1920 t/s ~36-42.9 (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 NVIDIA GeForce RTX 5090 run Stable Diffusion (LDM-KL-8-G)?โ–ถ

Yes. At Q4 it generates ~1611-1920 tok/s and fits up to 414k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~36-42.9 tok/s.

How much context fits?โ–ถ

At Q4, up to about 414k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.