We've known that the x1800 had sm 3.0 for a while, and that ATI has had SM 2.0b for a while too, and the difference can only be seen in the most recent splinter cell's SM 3.0-biased video options...otherwise most games run fine and well with SM versions.
Game developers arent foolhardy. They want to make games accessible to as many ppl as possible, and so only the newer upcoming games will be sm 3.0 only, otherwise most will support both 2.0b and 3.0.
Perkam
