ATI's new Catalyst 5.6 driver will be launched within a few days and is said to offer a big performance boost. By utilizing some Z optimizations and by removing unseen pixels before running them through the pixel shaders the new Catalyst drivers are said to offer anywhere from ten to twenty, and in some games even a fifty percent, performance boost.
ATI catalyst AI enables texture compression of the clouds resulting with no visual impact and massive performance impact at the same time. Sounds good to us if it works like described. We know that Nvidia test team will definitely try to find any image quality flaws and problems and scream to the rest of the world if it found any difference. We would do it too so let's hope that all is correct here.