I wonder if he's running at 512x512
Well, I got SDXL1 to run in InvokeAI. It took about 3 and a half minutes to render this one 512x512 crappy picture without the refiner.
So then, I ran the same prompts, steps, seed again, this time with the refiner enabled and that took 05:07 to generate this one (crappy) 512x512 image.
So yeah, it seems to work a bit better in Auto1111, I got much better looking results there though it is also dog slow and in my opinion it might be better just to use one of the finetuned 1.5 models and then upscale it... which will probably be faster than SDXL1 for its initial image output.
In Vlad Diffusion, I just get black square outputs, but it's quite similar to Auto1111, so I can't really be bothered with fiddling with it there.
Hopefully it'll get optimised and improved performance-wise, as is, I don't think I will use it much in a local install.
Edit - seems SDXL is heavily affected (slowed down) by the newer Nvidia Drivers. I downgraded to the 531.79 drivers, performance doubled and maybe even tripled. I knew there was some supposed slowdown in the new drivers but I didn't really notice it. Downgrading also doesn't seem to speed up performance for 1.5 models in Auto1111 much either. Oh well I guess I'll upgrade for gaming \ downgrade for AI'ing until Nvidia fixes it somehow.