After watching NVIDIA ROAD MAP these are the keys of what I saw moving forward
stacked EDRAM used for unlimited BW
DX12 will be in the new Maxwell cards coming out this summer that's why MS said early access
As I'm sure AMD will follow suite with whats above and you can find all of those into the x1 and its ROADMAP right now
It looks like sony might get left behind or have to make a new console soon what do you think?