A decent gaming rig from 2012 will probably be slightly more powerful than any of the next gen consoles. Also, the number of cores doesn't directly affect the ability to run games, not on its own, it would make little sense to throw in a hugely impressive cpu teamed with a mediocre gpu (which both the PS4 and 720 will likely get) and small amounts of ram (2-3GB).
This whole thing reeks of "teh C3ll" all over again. I'll hold off until E3, where all three machines will likely be detailed and specs revealed (Sony and/or MS denying a showing at E3 means nothing, this is the oldest trick in the book).







