Well excluding poorly optimized games on PC then the comparison can be quite direct. If a console with the equivalent to a dual core i3 and 7870 can run a game then a PC with a 4770K and 290 should be able to run the game much better. Again, that is if the game isn't a complete mess.
I know that with MOST "next-gen" games etc my PC has NO problem running them way above console spec.
So are they directly comparable? No. But the hardware is.