https://blog.wongcw.com/2020/01/19/nvidia%e4%b8%8b%e4%bb%a3%e5%ae%89%e5%9f%b9%e6%a0%b8%e5%bf%83%e6%9b%9d%e5%85%89%ef%bc%9a7nm%e3%80%8120gb%e9%a1%af%e5%ad%98/