The set of x86 instructions people actually use is sufficiently small that the (ignoring the amortized cost of the rest of the ISA - it should be considered, but we can't really know how much space it actually takes up on the die) the two architectures have, to first order at least, converged such that the tricks are now all in the details like memory ordering and scheduling than the actual instructions as per se.
The set of x86 instructions people actually use is sufficiently small that the (ignoring the amortized cost of the rest of the ISA - it should be considered, but we can't really know how much space it actually takes up on the die) the two architectures have, to first order at least, converged such that the tricks are now all in the details like memory ordering and scheduling than the actual instructions as per se.