So just a month ago I bought a brand new PC, but when I go to play any recent games like: Fallout 4, Call of Duty Black Ops 3, GTA V, Star Wars Battlefront 3, ect. I get really bad frame drops then back up to normal and its very annoying. I will have a constant 60 FPS on these games and then it randomly drops to 15-25 fps for about 2-3 seconds then instantly goes back up to 60. This will happen about once every 30-60 seconds sometimes more. I'm not too sure what the issue can be so please help.
OS: Window's 7 64 bit
CPU: AMD FX-8350 Black Edition
GPU: AMD Radeon R9 390 8GB
Motherboard: Biostar TA970 Plus
Ram: HyperX Fury 4 x 4GB
SSD: SanDisk SSD Plus 250GB
HardDrive: Seagate Barracuda 2TB
Power Supply: not too sure on specifics but its 450W
All Drivers are up to date.