Why does a new SSD display lower IOPS?

Question

Solid State Drives

The details are as follows: Bought a new Samsung 850 pro SSD.
The declared arbitrary reading and writing does not correspond to the real one.
Because sequential read / write corresponds to what is written, I have a suspicion that arbitrary lagging is not quite normal SSD behavior.
I used the built-in buttons in the program. Rapid Mode did not touch, because. I don't know if the current situation is normal.

ed.
I'm sorry, I forgot the details: with the help of Paragon Migrate OS to SSD, I transferred the system to an SSD. I had to remove the driver for which the system cursed at boot, the system did not notice its absence.
ed2.
I formatted the SSD, performed all the manipulations from the hard disk using a proprietary program, rebooted and. Absolutely nothing has changed at all. The number in the region of 60000 is still displayed instead of 100,000 declared.
Could this be an issue with the SSD controller?

Answer 1

There is only one reason, as it turns out.
Intel Rapid Storage Technology.
The absence of this driver with a bang cut 40% of IOPS. I have not come across such information anywhere in RuNet.
It's not the model, not the controller, not the firmware. The model declared certain arbitrary and sequential write / read, and only after installing the driver did it begin to correspond to them.
I hope this information helps people.