Mafia II is a third-person action-adventure video game, the sequel to Mafia: The City of Lost Heaven. It is developed by 2K Czech, previously known as Illusion Softworks, and is published by 2K Games. The game is set from 1943 to 1951 in Empire Bay (the name is a reference to New York's state nickname "The Empire State"), a fictional city based on San Francisco and New York City, with influences from Chicago and Detroit. The game features a completely open-ended game map of 10 square miles. No restrictions are included from the start of the game. There are around 50 vehicles in the game, as well as licensed music from the era.
You can see under Mafia II we hit a bit of a wall at 1680 x 1050 and 1920 x 1200 to the point where the OC really does nothing. 2560 x 1600 hasn't hit the same limitations, though, and we can see a nice boost in performance over the HD 6990 and HD 6970 CF setup.