7800 XT has 624 GB/s as well, and can be found for $400 used. 16 GB of course.
I don't have an Intel dGPU, but I suspect the situation there is even worse. I mean you go to the torch homepage: https://pytorch.org/get-started/locally/ and Intel isn't even mentioned. (It's here though: https://docs.pytorch.org/docs/stable/notes/get_start_xpu.htm...)