Is there any difference in heat dissipation? My card seems to be running too hot for its own good, and I'm constantly getting freezes and instant reboots. This is in GTA Vice City. I was able to run at 1600x1200, stuff like the frame limiter turned off, and the draw distance set to maximum with no slow down. But after about 3 minutes it would lock up. I'm not running at 800x600 and other settings on safe levels, and I'm still not able to run more than a mission at a time without taking a break in between. I even removed the card that was two slots below it, the spacers on the back, and I took the side panel of the case off, and it's still running hot!