Je n'ai pas la version ps3 (pas encore le jeu en fait), mais j'ai trouvé ca sur IGN (de ce coté ils ont quand même vachement plus pro que les 3/4 des sites français...)
"As is becoming standard, PC owners are in for the biggest visual treat. Dishonored does look excellent on console - I finished it on Xbox 360, then started again on PS3, and thoroughly enjoyed playing on both. You may notice minor frame rate issues and a little tearing, but nothing that will really take away from the gameplay. That said, it's significantly better-looking on a modern PC, so that should be the platform of choice for players who have the option."
Bref la version pc reste la meilleur, et les 2 versions ps3/360 sont similaires (un peu de tearing et quelques rares soucis de frame rate pour les deux, mais rien de méchant)