I was thinking of purchasing a Dell optiplex 790 and it currently has an Intel i3 processor which is underwhelming for me as a gamer. I was wondering if this optiplex is AMD processor compatible since it does come with an AMD radeon graphics card. All of the posts I found only showed Intel processors compatible. Also is it possible to use a dual core i5, that is also not listed as being compatible. I think the list on the dell site doesn't include ALL processors that could work