I just built a new gaming PC two weeks ago and I feel unsatisfied with the gaming performance. Overall, the PC doesn't feel "smooth" (I suspect Windows being installed on an HDD being the cause for the OS slacking), and games tend to stutter. For instance, I bought GTA 5 and made the exact same settings as my friend who has GTX 960 4gb and i7-4790k as well as 16gb DDR3 RAM.
I have GTX 1060 6gb and i7-7700k, 8gb DDR4 RAM (at higher Mhz than his). Yet my game stutters A LOT and his does not. I suspect it might be the RAM, but I really doubt it. The game doesn't use 8GB of it from what I've checked.
What can it be? I am incredibly frustrated. Drivers are updated FYI.