According to the new nVidia market studies, (the one on the strong potential for growth in PC games industry, and the one on the difference between PC graphical power and current console of this generation.) The PCs will dominate the gaming sector over consoles in 2014.
Now PC Graphics are almost 10 times more powerful than the consoles.
According to the estimate made by nVidia we can see that already in 2005, PC GPUs were twice as potent as the ones used in consoles.
If we jump to 2007 we see that a 8800GT offered three times more graphic power and finally in 2011, according to this estimate a GTX 580 offers a power 9 times higher than an Xbox 360 GPU.
So, this means that in a few years console gaming will be dead and PC Gaming will rule the world (If not already).