I am currently running a i5 4690k @ 3.5Ghz, r9 290 non overclocked, 8gbs of ram at 2560x1080p. I didn't have a single issue with games such as GTA V, Watch Dogs, basically demanding open world games, I could run them on very high settings at around 60fps no problem. But a few weeks ago I noticed that I had massive performance drops, along with lots of flickering and jagged textures. I checked my temps and my CPU never goes above 65C, but my GPU does sometimes climb to 85C. I went into the graphics menu and turned all of the settings down to the lowest thing possible and I still have the same issues. I get and average of about 35fps with stutters and drops. The game also says that I am using more video card memory than I have, even though I have 4gbs of VRam and it says I'm only using 2gbs. This issue also happens in other games. Any idea what the issue is, and how to fix it?