The nVidia nForce 2 IGP board from Epox gets reviewed by the dudes over at T-Break. Epox is notible for overclocking, so you might wanna consider this one if that's your bag. Review
Let's take two boards : Epox 8RDA+ and 8RGA+ (which is the exact same thing, but with integrated video, right ?) Will the 8RGA+ be less performant than the 8RDA+ when the onboard video is disabled ? Assuming both are configured the exact same way, obviously.
With the onboard video disabled, the two boards will be alike in performance. If you were to use the onboard video on the 8RGA+ and use a GeForce 4 MX 440 with the 8RDA+, the 8RDA+ would be better in gaming benchmarks.