I'm using a Dell XPS model which has an nVidia GeForce 540M processor.
Now I have a huge, frustrating problem. When I start playing a game, it runs extremely
fluid and smooth, like a charm. But within a minute, the frame rate starts rapidly decreasing, and within 2 minutes, it's as if you're seeing a frame-by-frame review of an action scene. It keeps getting slower and slower. When I run the game on an Intel card, the game is slow, but otherwise there is no progressive slowing down, and runs at a constant frame rate. So I guess this is a problem with the nVidia processor. But I have no clue as to what it is.
Earlier, I used to play Assassin's Creed and Hitman: Blood Money on the same processor, but had no problems whatsoever. It seems to be a recent issue.
This problem happens for any game I play. Some examples are Batman: Arkham Asylum, Far Cry 2 and GTA 4.
Is this a software or a hardware related problem, and what do I do to fix it?? A little desperate here