WD 3d tlc ssd read speed drops on old-written data in the drive

[lippone]

similiar with Samsun 840evo in 2014. There are many topics in Baidu（china） Tieba。

[Vegan]

SATA SSD are just as variable as hard disks for read/write

PCIe NVMe storage uses a different driver stack which is not as bad for read/write speeds