What is the main difference between console games and their PC Pendants? The console versions are designed to run on a specific set of Hardware. The PC version has to work with different components like Chipsets, CPUs or graphic cards. Therefore PC-Versions allow to adjust the graphic settings.
The Windows Vista Magazine (Germany) took Assassin´s Creed and created some animated Gif-Screenshots which show the difference between the lowest and highest settings of the game. Just click twice on a Screenshots to get the full resolution (2.560 x 1.600).
This news links to the second part of the Screenshots gallery. The first part can be found here: http://www.windowsvistamagazin.de/?article_id=637798