I am having MacBook, in which the motherboard has GPU NVIDIA GeForce 9400M G. Hybrid SLI technology allows you to enjoy an hour or more capacity and higher performance of 80%. The GeForce graphics solution is the preferred software developers to design and test their games and applications. So you can sleep on both ears, games and software you buy will work on GeForce! I liked this feature and then thought of purchasing this macbook. I wanted to push my graphics card and so need to overclock it. just installed the driver for change in their performance Nvidia. (I'm in bootcamp on Windows XP). My question is how and how far I can push it? Since, I am new I am expecting that you members will be kind for me by providing some detailed information. I am sure that you members will help me soon.