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I'm running a BFG 8800GTS 640MB graphics card on my Intel Quad Core Q9550 desktop, 4GB RAM. Recently I've noticed performance degrading in gaming intensive sessions where the game starts off with a 60 FPS but then once I get 20-30 mins into the game, the graphics start getting a little choppy and frame rate drops to between 19 and 40 FPS. The games are still playable but not as smooth as when I first launched it.
What could be the possible reasons for this? One reason I've thought of is the heat buildup - the card often gets as hot as 110 Deg C. Are there any other reasons and what can I do to fix this?
A few thoughts: Does a reboot cure the problem? Does it happen with all games or just one? Is the card overclocked? Do you have the latest drivers? – Chris – 2011-02-05T18:02:46.080
To answer - Reboot helps, but only to the extent that the graphics card is not under load and therefore cools down in the interim, Happens with all games, Card is stock BFG frequency (no OC), 266.58 installed (latest as of this writing). – kpax – 2011-02-06T12:48:06.343