Here is a video of PC gameplay of Crysis 3 set to max settings across the board. No doubt the game looks fantastic on PC eating up all available resources to max out the game with only the highest graphics cards or even dual GPU's running in sli. With so much power required to run this game, are the graphics really that much better than what is currently available on consoles?
In my opinion, the PC game is definitely noticeably better, but for the power ratio that it takes to run this game on PC compared to the Xbox 360 version, it's not nearly a far enough ahead margin. An enthusiast gamers PC is many many times more powerful than any of the HD consoles but the returns in graphics keep getting less and less year after year. The key in this next gen is going to be exactly what Nintendo is good at: making unique looking games that take advantage of art style in a world of copycat games that all have the same realistic graphic style with minimal differences in not only how they look but how they play (see the FPS genre).