I'm not sure how to properly measure DRAM access, but for register/immediate-only instructions there is https://uops.info/table.html https://uops.info/table.htm

I'm not sure how to properly measure DRAM access, but for register/immediate-only instructions there is https://uops.info/table.html https://uops.info/table.html. It does not measure x87 transcendentals (I guess because microcode results in different performance), but CPUID is a notable mention.