Most PC games are low budget; which means that they can often have good (unoptimized) graphics, but you will always see that the animation, the camera motion, voice acting plus other things like story or gameplay sort of destroy the overall illusion.
Witcher 2: case in point.
Run that game on 6 monitors at the same time. The animation would still look like something resembling a PS2 era game. Some animations even look like PS1 era games, running up stairs for example.
Stop chatting BS, pleaze:
http://youtu.be/3VcNiMgQGSo
http://youtu.be/1LJnR6E6sEU?t=46s