using 2.1, xformers is not available for AMD, fp16 causes black images, f32 uses a lot of vram and is very slow

[CapsAdmin]

Is it supposed to work with f16 without xformers? If so I only get black images.

f32 works, but it uses a lot of memory and is very slow compared to 2.0.

I assume it's even faster with xformers, but as mentioned din the title they have no support for AMD. Half precision in general is fast, but this seems broken now.

See also https://github.com/AUTOMATIC1111/stable-diffusion-webui/issues/5503