The memory model, interrupt model, packetized networking, digital storage, all function more or less identically.
In embedded, I still see Z80s and M68ks like nothing's changed.
I'd love to see more concrete implementations of adiabatic circuits, weird architectures like the mill, integrated FPGAs, etc. HP's The Machine effort was a rare exciting new thing until they walked back all the exciting parts. CXL seems like about the most interesting new thing in a bit.