SN550是TLC颗粒。具体来说,SN550是西部数据推出的一款固态硬盘,它采用了TLC(Triple-Level Cell,三层单元)颗粒。这种颗粒的特点是每个存储单元能存储3bit的数据,相较于QLC(Quad-Level Cell,四层单元)颗粒,TLC颗粒在性能和寿命上通常有一定优势。 SN550系列固态硬盘提供了多种容量选择,包括250GB、500GB和1TB版本,其...
新版sn550基本上..西数官网上sn350的date sheet,上面显示960gb、480gb、240gb的sn350均为tlc,虽然tbw极其弱鸡,不过颗粒还是tlc的。960g的sn350,无论是缓外还是4k这些速度
可以很明显的看到出缓后tlc直写有400MB/s,明显的tlc颗粒,目前qlc可做不到这个水平,某国产qlc盘出缓后颗粒直写只有150MB/s,机械顺序读写都和他差不多,所以不要再买qlc了,除非它很便宜(问题是现在也不便宜啊)。
Earlier this week, news broke that Western Digital was shipping WD Blue SN550 drives with QLC NAND instead of the TLC NAND the drives had launched with. This had a significant negative impact on the drive's performance when the SLC cache was exhausted. Currently, a number o...