https://blog.wongcw.com/2020/07/06/7nm%e5%8d%87%e7%b4%9a%e7%89%88zen3%e6%9e%b6%e6%a7%8bamd%e6%96%b0%e4%b8%80%e4%bb%a3epyc%e8%99%95%e7%90%86%e5%99%a8%e6%97%a9%e6%9c%9f%e5%b7%a5%e7%a8%8b%e7%89%87%e6%9b%9d%e5%85%89/