The words next generation have always held a lot of promise — and a lot of hype — in the world of video games. But now that delirium over the launches of the PlayStation 4 and Xbox One is beginning to subside we must ask what, exactly, this next generation delivers to living rooms. When it comes to graphics — that jumble of polygons, sophisticated algorithms, and complex maps that create so much buzz — what do these systems offer that your dusty old Xbox 360 and PlayStation 3 cant?