Theres a difference between being able to run a game on max settings and acually being able to play on max settings, so what if u have on max settings it doesn't mean nothing but are you acually able to move smoothly without fps lag thats what counts. Yea I can run COD2 on dx9 on max on my ati radeon x1600 pro but can I play it on max no I lag like hell. Overlocking your 8600gt wont cut it, depending on the game you are playing. You will need to upgrade to 8800gt or next level up. As I play and compete in competetive league such as cal - m etc I don't run max settings I look for fps taking out as much junk as possible that the creater of the game put in to make the game run more smoothly with no fps drops etc. Plus to run max settings with no fps drop or lag I would need at least a 3000+ computer.