I bought a new 1TB 870 QVO about 5 months ago to replace an older SSD that failed.  

The 870 QVO seems to work OK, but the Samsung Magician benchmark shows a rapid deterioration over the last couple of months.  

Date     Sequential Read       Sequential Write    Random Read       Random Write   Performance Mode

10/21    561 MB/s                      533 MB/s           92773 IOPS              74951 IOPS   Standard

01/22    563 MB/s                       86 MB/s            44433 IOPS              21240 IOPS   Standard

02/22    557 MB/s                    5955 MB/s            85205 IOPS            120361 IOPS   Full Performance

02/22    546 MB/s                        84 MB/s            44433 IOPS               21240 IOPS   Standard

Does the drop-off in performance effect P3d in a matter that would be noticeable?  

Although the Full Performance Mode offers substantial improvement, is it worth the shorten life span of the SSD?

I suspect that the drop-off is related to a cache problem, but I don't know how to clear it, and what might be operating in the background to keep the drive from clearing the cache.  

I can live with the drop-off in performance as long as it doesn't cause any noticeable issues with P3d.

 

 

Edited February 4, 20224 yr by BlueStar

How much of the SSD is used? I seem to remember an article that said once an SSD approaches its capacity, it slows down. See for example https://pureinfotech.com/why-solid-state-drive-ssd-performance-slows-down/

I have used 289GB / 930GB, no where near capacity.