"I thought I had already said something about that. There is no 2nd GPU, there is no stacked GPU," Penello said. "I didn't think [the second GPU rumor] was festering because I thought I'd already commented on it. For some reason the DX12 announce seemed to make it resurface."
The executive was then asked how the new DirectX 12 (DX12) would impact the Xbox One, but he admitted that he was not yet fully versed on the upcoming graphics API. "I know we're continually improving our tools for developers, as we did with Xbox 360, so you'll see consistent performance improvements over time."
@J_Martinez2012 @thuway @PNF4LYFE I thought I had already said something about that. There is no 2nd GPU, there is no stacked GPU.
-- Albert Penello (@albertpenello) March 20, 2014