Yesterday ATI released their latest Catalyst driver for users of Radeon graphics cards. The new driver promises plenty of bug fixes but what about performance? Read on as we take a look at the new Catalyst 5.9 drivers compared against the pervious version to see if it's worth upgrading from a performance prospective. We'll be comparing the drivers on a Radeon X550, X700 and X850XT. Check out the full comparison over at TweakTown.