You normally have an bios option to chose, what video adapter you want to use, the integrated gpu (IGP something or the external one PEG...) or even both ...
Don't worry simply check a manual if there is one available for the mobo you want to purchase ...
I'm no Intel fan boy nor Amd, but my $$$ wallet is telling me go AMD, you can have a pretty god system without going bankrupt, and i saved 25% more than a friend who purchased an Intel kit loll
But i hate the Intel way of doing more different socket types and 'forcing peoples' to change too often their mobo's + cpu's
My 2 cents without starting fights