Microstuttering in whole PC ?

It started to happen since some time and i can't remember changing something in pc..
tried reinstalling windows,chipset drivers..used ddu in safe mode and reinstalled latest version of gpu drivers.
bought new dp cable just in case.reseated gpu..
i can play games on 60fps with no problem and i don't have frame drops but it just stutters when i move camera in game or watch video..basically everything that moves on the screen..