This only on Crysis 2? Did you try different graphic settings, lower resolution, turning off some effects, etc...? Using latests drivers and patches to the game?
9600gt is a bit of a mis-matched card to your quad core CPU, you may want to look at an upgrade. It's a mid-range card from 2008, while it will run OK even on new games, you will do much getter with a newer card.
I got an XFX 9600GT 512MB as well and no problem at all playing Crysis 2 on a simple core2duo system. Unless your card is dying you should have no problems running the game as it runs perfectly smooth on mine.
This issue can be related to:
- Graphic card over-heating. Look for temperature with HWMonitor or eVGAprecision 2.0.3. Shall not exceed 85 degrees. When I do play Crysis 2, I put it's fan to the maximum, I also overclock the card from 650/1625/900 to 745/1862.5/1150 (core/shader/mem) AND the cpu/ram/fsb to the roof too. These are the maximum stable clocks I've been able to achieve. The card can reach up to 85 degrees centigrade and it doesn't have a single behavior.
- Beta Graphic driver or an old one. Try driver sweeper to uninstall every graphic drivers, reboot, install the latest WHQL driver from nvidia, reboot.
- Outdated DirectX. Update it to the latest version, reboot.
- Power supply failure. Use HWMonitor and look for voltages. They have to stick around their specification (1.95V on the +12V line shows the pus is dead).
have tried both, playing the game with the card overclocked and with stock frequencies... I dont have an HD monitor, so usually the res at which i play is 1024x768. and ofcourse my card will not be able to cope up once i go for a 40" Full HD Bravia that im planning to get...
i meddled with the brightness, Game settings, screen res.... but didnt work....!
however, rolling back drivers and reinstalling them is what imma do...