https://blog.wongcw.com/2018/12/04/imagination%e7%99%bc%e5%b8%83powervr-9xtp-gpu%e5%92%8cnpu%ef%bc%9a%e9%81%8a%e6%88%b2%e6%80%a7%e8%83%bd%e6%8f%90%e5%8d%8750/