I was playing DiRT 4 today (on ultra, 1050p) and in the middle of the race the FPS drops from ~60 to like 25. It was pretty brief, like 1 minute, but it just happened again and I don't know what's causing the spikes, since it usually runs really smooth. Any help would be appreciated. Edit: it now happens in BeamNG too
Maybe something is working your computer hard, or maybe cooling has some issues? Without data it is really hard to know.