In my experience Steam offering lately have had more bugs then a $2 whore. Every "patch" they release breaks my damn game for 3 days till I can find a way to circumvent it. If you can run 3dmark03 or 05 for a couple hours without artifacts then I would rule out heat but atleast try it. Is there any known problems with your drivers and CSS - check the web for known issues. My guess it that if you can play other games fine and not CSS than they are at fault - grab a Steam Tech Support ticket and get in line.
For comparison I run CSS at 1280x1024 on my 5900xt at an average of 75 fps with occasional dip to 50 at explosions. |