Do different versions of Deus Ex: Human Revolution differ visually or mechanically? How so?

Solution 1:

As described in that article on Ars Technica, the PC version has a few graphical enhancements:

  • Use of DirectX 11-specific functionality.
  • Support for AMD's HD3D and EyeInfinity technologies
  • Higher resolution options (well, obviously)

The user interface is also reported to have been optimised for use with a keyboard, and mouse controls can be customised to fit your preferences.

I do not know whether the XBox 360 and PS3 versions differ in any significant way in either graphics or UI.

Solution 2:

Adding to jhominal, you can find a detailed comparison of the 360 and PS3 versions here: Lens Of Truth: Dues Ex: Human Revolution