from reading it seems most of you have brain damage and have forgotten how consoles work.
When the 360 came out PC were already ahead of it, yet the graphics on the 360 were superior. when you understand why that was true you will get what a significant increase in quality those specs would bring the 720.
Those specs are not at all behind the PC's that 95% of the population have on their desks.
a console using a 6 0r 8 core - 2ghz processor, will put even a core i7 to shame because of the quality and specifics of the programing.
4GB ram is 7x more ram than the 360 and the graphics on the 360 still look great. again.. the quality and specifics of the programing.
the graphics whether a 6670 or a 6870, will be used to peak efficiency and all the specific bells and whistles the hardware has. vs the constant battle pc devs have between supporting things the "nvidia way" or the "Radeon way". Only one way here.
you are going to see some really impressive stuff for the first 5-6 years and only see the fade the last couple of years.
They probably know that 10 years is a little over optimistic.