An unfortunate tale about Samsung's SSD 840 read performance degradation. ... The data for the graph above was gathered using SSD Read Speed tester when the drive reported that it was 40°C.

Do note the performance degradation issue doesn't appear to be limited to Samsung's planar TLC NAND, with other drives released in the past year potentially suffering a similar fate including the ...

The German Samsung community forum admins reports a new firmware that addresses the rapid health degrade on 990 Pro SSDs. Sadly, it comes with some pros and cons that are important to note.