---------- Post added at 03:41 ---------- Previous post was at 02:44 ----------
Okay - I put my GPU stats on my keyboard display. While I was in game, I noticed my GPU memory slowly rise by 1mb/10 seconds or so. It eventually went from ~560 to ~590, and started to lag. So I used the flush command. The GPU memory reset back to ~560, but the lag didn't go away.
Another thing to note, my GPU usage is lower when I start to lag. What is going on here?