Did you ever think of running two AMD graphics cards and two Nvidia graphics cards running at the same time? In the same computer? Do you think this is ridiculous? And yes, its ridiculous just because it is. As we all know that Nvidia have their own exclusive technologies like G-SYNC and PhysX and AMD also have their own exclusive technologies like Mantle and TrueAudio. So in this PC build, we putted both companies graphics cards in one single PC, so that the user could enjoy all of the technologies from both vendors.