[amelius]

So on a RISC architecture, this would happen even for non-similar programs, because the number of instructions is smaller? Or would they just duplicate the processing units?

[Dylan16807]

The units aren't dedicated to esoteric instructions, you have functions like "small alu", "big alu", "fp adder", "address generator and memory load".

RISC will perform about the same and you can hyperthread one fine.