Switching to the much more demanding idTech4-based Prey, the Catalyst driver continued to blow away the competition. With the Radeon HD 5000/6000 series when in the tweaked configuration, with 2D color tiling enabled, you see the frame-rates go up significantly. While the frame-rates are up a lot, unfortunately this is because the game was not rendering correctly on the open-source driver with 2D color tiling for the HD 5000/6000 series.
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