- Aug 27, 2019
- 5
- 1
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I have 2 x Samsung 850 Pro SSDs in Raid 0 and I performed the test with CrystalDiskMark 5.2.1. These are the old values of the test which I did two years ago:
https://i.postimg.cc/4dKbCR08/old-crystal-disk-mark-values.jpg
These are the new values of the test which I ran today:
https://i.postimg.cc/02GG1ftq/new-crystal-disk-mark-values.jpg
I used exactly the same PC with same motherboard and same SATA ports' connections. I secure erased both SSDs with Samsung Magician today before running the new test. Both tests were done with a fresh Windows 10 installation same build. I reapeated the new test many times but the results were similar (even using newer versions of CrystalDiskMark). The test shows a huge decrease in 4K Q32T1 Read and Write values after only two years of SSD usage.
Old 4K Q32T1 Read and Write values were: 447 MB/s (Read) and 399 MB/s (Write)
New 4K Q32T1 Read and Write values are: 290 MB/s (Read) and 251 MB/s (Write)
Other values (i.e. Seq Q32T1, Seq, 4K) are pretty much the same. The only performance decrease was in 4K Q32T1 values. The secure erase was not able to restore the excellent factory perfomance of 4K Q32T1 values. Why? Is it possible to restore the performance of those values by using other methods? Are those values showing a severe degradation of my SSD?
https://i.postimg.cc/4dKbCR08/old-crystal-disk-mark-values.jpg
These are the new values of the test which I ran today:
https://i.postimg.cc/02GG1ftq/new-crystal-disk-mark-values.jpg
I used exactly the same PC with same motherboard and same SATA ports' connections. I secure erased both SSDs with Samsung Magician today before running the new test. Both tests were done with a fresh Windows 10 installation same build. I reapeated the new test many times but the results were similar (even using newer versions of CrystalDiskMark). The test shows a huge decrease in 4K Q32T1 Read and Write values after only two years of SSD usage.
Old 4K Q32T1 Read and Write values were: 447 MB/s (Read) and 399 MB/s (Write)
New 4K Q32T1 Read and Write values are: 290 MB/s (Read) and 251 MB/s (Write)
Other values (i.e. Seq Q32T1, Seq, 4K) are pretty much the same. The only performance decrease was in 4K Q32T1 values. The secure erase was not able to restore the excellent factory perfomance of 4K Q32T1 values. Why? Is it possible to restore the performance of those values by using other methods? Are those values showing a severe degradation of my SSD?