I am building with the A455-1203 Asus z87-pro and the Evga ge force GTX 770 video card with the i7-4770k processor. I am wondering if the built in graphic/video on the MoBo will slow things down since I will be adding the 770? I know my pc will only be as fast as the weakest component and if there is a comparable MoBo with out the built in feature, then would it be better and maybe save me on a component that is unneeded?