As a PC gamer who has played both Crysis 2 and the Crysis 3 demo, I think it looks quite on par with maxed out Crysis 2 plus way more particle effects, polycount and better textures.
As for Crysis 3 is hard to say because it is more of a jungle setting as opposed to urban, but Crytek seems to be drowning the game in that cheap golden HDR the original Crysis mods used to make the game look better by disguising the low poly vegetation and bad textures. But the final game might be a little better, specially in the shader department, so yeah.
Still pretty encouraging for such an early game specially considering GPU refreshes right now are a bit tricky because manufacturing processes aren't miniaturizing fast enough. So that feel consoles catch up with PCs from this gen might be even more present in Orbis and Durango.