well probably bullshit, but seems about as realistic as half the rumours in the OP, and more likely than some
"What we know is that Durango development platform is finally running on AMD hardware, as the company taped out GPU which will be in use for the Xbox Next console. The initial Durango XDK (Xbox Development Kit) featured an 8-core Sandy Bridge processor (SNB-E, LGA2011 on a custom motherboard with embedded memory), 8GB of DDR3 memory and Nvidia Fermi-class graphics (GTX 570). The new kit allegedly comes with 8-core FX processor, and Southern Islands graphics, with the final console allegedly featuring Sea Islands, AMD's second generation 28nm GPU hardware."
lines up with this at least http://www.eurogamer.net/articles/digitalfoundry-the-curious-case-of-the-durango-devkit-leak
@TheVoxelman on twitter
