I have just overclocked my new XPS for a slight amount. It is running with NVIDIA GeForce GT 555M. So i thought that is a good option to overclock it. i heard that this card is great for overclockers. After that again i overclocked some more but the temps were stable and no issues at all while playing crysis games. i can get more than 20 FPS. I will now going to check 3D Benchmark 11 scores.