https://blog.wongcw.com/2018/11/15/15%e5%af%b8macbook-pro%e7%8f%be%e5%8f%af%e5%ae%9a%e5%88%b6radeon-pro-vega%e9%a1%af%e5%8d%a14gb-hbm2%e9%a1%af%e5%ad%98/