https://blog.wongcw.com/2018/11/12/12nm%e5%bc%b7%e5%8a%9b%e5%8a%a9%e6%94%bb%ef%bc%9aamd-rx-590%e6%a0%b8%e5%bf%83%e9%a0%bb%e7%8e%87%e5%8f%af%e9%81%941680mhz/