https://blog.wongcw.com/2020/09/22/rtx-3080%e5%83%85%e7%94%a819gbps-gddr6x%e9%a1%af%e5%ad%98%e6%98%af%e5%9b%a0%e7%82%ba%e7%99%bc%e7%86%b1%e9%87%8f%e5%a4%aa%e5%a4%a7/