Stable Diffusion is the kind of phenomenon where people are actually contributing other backends (like the one for the M1 GPU). That’s not super common though,

Stable Diffusion is the kind of phenomenon where people are actually contributing other backends (like the one for the M1 GPU). That’s not super common though, a lot of the time if you want to get a network running you need an Nvidia card so you can use CUDA (it’s not even about hardware performance, just that CUDA and CUDNN and so on are written by Nvidia for their GPUs).