I briefly read something on this forum once, I think from amuffin or someone. About overclocking igpu on the 2500k, has anyone else tried this or have experience with it. The reason Im asking is that I was thinking of getting a z68 board, but then I realized this is mostly useless if I plan to use discrete graphics. However, I remember vaguely that using the board, your system can switch between the two as needed. I guess my question is, is there any real practical advantage to overclocking your igpu, if you have discrete graphics? And if there is, does overclocking your igpu limit your cpus overclocking ablility?