PT Boats: Knights of the Sea
PT Boats: Knights of the Sea is a naval action simulator that places gamers in charge of a mosquito fleet of the Allied Forces, Russia or Germany during the height of World War II.
Using the latest Direct X 10 technology PT Boards - Knights of the Sea manages to apply a lot of stress to the components of today which in turn gives us quite an intensive benchmark.
At resolutions up to 1920 x 1200 there isn't a huge difference between the cards. At 2560 x 1600 we see a bit of movement. There isn't a whole lot separating the higher end setups, though.