Well, today I have bought GTX 670 and I wanted to get GTX 680 but the guy told me its not worth it to pay 100 dollars extra as I just play games on max and no overclock. Here is a video and let me know what do you guys think about it. http://youtu.be/CRY7mRXOnRI
So, far I like it and played few games on max from the game main not the GPU. The GPU settings I have left it on default and didn't push anything to max. My old video card was Asus GTX 560 1GB and this one has 2GB.