https://blog.wongcw.com/2018/11/26/amd-7nm-zen2%e9%9b%99%e8%b7%af%e5%b9%b3%e5%8f%b0%e7%8f%be%e8%ba%ab%e8%b7%91%e5%88%86%ef%bc%9a%e7%9b%b4%e4%b8%8a128%e6%a0%b8/