mikeash.com: Friday Q&A 2013-10-11: Why Registers Are Fast and RAM Is Slow

In the previous article on ARM64, I mentioned that one advantage of the new architecture is the fact that it has twice as many registers, allowing code load data from RAM less often, which is much slower. Reader Daniel Hooper asks the natural question: just why is RAM so much slower than registers? Distance Let's start with distance. It's not necessarily a big factor, but it's the most fun to anal

[Nyoho]

レジスタが高速でRAMが低速なのはなぜなのか