[PeCaN]

Probably not, since it's optimized for scientific workloads (being designed specifically for the K computer replacement) (so it doesn't have texture units, ROPs, etc; you'd have to do too much in software to make it actually render things). However I think the overall design is really good and has enormous potential, if not for graphics at the very least for ML.

The vector architectures with extremely high memory bandwidth coming out of Japan recently (NEC SX-Aurora Tsubasa, Fujitsu A64FX) are pretty fascinating.