https://blog.wongcw.com/2019/02/11/radeon-vii%e3%80%81rx-vega-64%e5%90%8c%e9%a0%bb%e6%80%a7%e8%83%bd%e5%b0%8d%e6%af%94%ef%bc%9a%e6%9c%80%e9%ab%98%e6%8f%90%e5%8d%87%e9%81%9430%ef%bc%85/