x86 came out 1978,
21 years after, x64 came out 1999
we are three years overdue for a shift, and I don’t mean to arm. Is there just no point to it? 128 bit computing is a thing and has been in the talks since 1976 according to Wikipedia. Why hasn’t it been widely adopted by now?
Is address space the only reason we moved away from 32-bit for high-performance computers though? Does 64-bit have any performance advantages over 32-bit apart from that? What about SIMD performance?