Running Stable Diffusion on an NPU with an AMD Ryzen AI HX 370 is an interesting idea, but the support for NPUs can vary depending on the hardware and software available. AMD is working on improving AI performance through its ROCm platform, but Stable Diffusion may not yet have direct, out-of-the-box support for NPUs. I recommend checking AMD's latest resources and community forums for any updates or demos that might show how Stable Diffusion runs on their NPU hardware, and also exploring AI frameworks that support AMD’s hardware acceleration.
Good things take time.