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.
Mafia II is a bit more intensive than the other two games we've looked at and you can see the GTX 550 Ti struggles at the higher 1920 x 1200 resolution. At 1680 x 1050, though, it manages to just break that 60 FPS mark. The HD 5770 on the other hand isn't anywhere near it.