Re: GTX 260/280 Clock Throttling While in 3D Apps. An Explanation.
When I tried the 180.43 drivers I noticed this was doing it and did cause stutters in games(well WOW anyways) when it did revert back to 2d clocks. I went back to the 170.xx drivers and no issues. I was using evga tool to monitor what was going on.
Asus G74sx-Republic of Gamer Laptop