https://blog.wongcw.com/2020/02/26/%e9%95%b7%e9%91%ab%e5%ae%98%e6%96%b9%e9%96%8b%e8%b3%a3ddr4-lpddr4x%e5%85%a7%e5%ad%98%e5%96%ae%e6%a2%9d8gb-2666mhz/