https://blog.wongcw.com/2022/05/12/%e8%8a%af%e5%8b%95%e7%a7%91%e6%8a%80%e5%85%a8%e7%90%83%e9%a6%96%e7%99%bc21ghz-gddr6x%e9%ab%98%e9%80%9f%e9%a1%af%e5%ad%98/