PCGH recently received the retail version of Fallout 3 and took a bunch of screenshots. We use some of them to compare the visual quality offered in the game.
We took screenshots of three different scenes and converted them into Mouseover pictures for better comparison. "Very High” offers the most coherent lighting effects and the most extensive vegetation. With "High” details the most obvious differences are the missing Anti Aliasing and Anisotropic Filtering. "Medium” settings result in washy textures and spare vegetation. In "Low” settings especially the lighting suffers. Water reflections or coherent vegetation are missing. Note: The placement of bushes and coppice varies every time a saved game is loaded.
On the next pages you will find two more Mouseover comparisons. All the other screenshots can be found in the picture gallery. Fallout 3: Medium vs. Very High