https://blog.wongcw.com/2019/06/02/amd-navi%e5%9f%ba%e6%96%bcrdna-gcn%e6%b7%b7%e5%90%88%e6%9e%b6%e6%a7%8b%ef%bc%9a2070%e5%85%ad%e6%88%90%e9%9d%a2%e7%a9%8d%e6%9b%b4%e9%ab%98%e6%80%a7%e8%83%bd/