Ryan are you seeing this issue. im not seeing this and i have yet to install the firmware because i dont want to break my raid. Figured when windows 10 comes out ill break raid flash then raid windows 10.
If you look at the screenshot you can see the performance degraded. This test unit 840 EVO SSD spent more than three months of the shelf, he results are pretty shocking: the months old data on the disk was only recoverable with an average read speed of 35.1MB/s.
After formatting the disk and loading it with new data the disk averaged 430MB/s in HD Tach, there's a abvious issue with long-term degradation of data stored in the triple-bit-per-cell memory.