Basically I have had this problem since forever! I can't seem to get rid of it, I even upgraded to a 7970 GPU and the problem still persists.
This happens in Arma 3/DayZ/Arma 2, basically anything Arma related as well as games like Batman Arkahm Origins, Rust and Borderlands. But game like BF and TitanFall for example I can run with no problems at all, very smooth.
The problem is every 30 seconds or so I will get this tiny little bit of lag/FPS spike which only lasts a milli-second but it's very annoying and noticeable and really ruins my experience, sometimes it can go a couple minutes without it happening but the problem is always there and comes back. I can run them flawlessly besides this little stutter, it will be a steady 60 FPS then quickly drop then shoot back up again.
I have updated all my drivers, messed with the in game settings, turned off Anti Virus and Firewall, set Arma as High Priority in Task Manager, disabled all start up programmes etc but the problem never goes away.
My specs are:
I've had this problem for a year now and really want to get to the bottom of it, can anyone shed any light on this problem?