http://www.anandtech.com/mobile/showdoc.html?i=1951&p=3

A while ago, we saw a system equipped with an M11 GPU, and the results were quite impressive, particularly over the Mobility Radeon 9600 (code named M10). The fact that the Mobility Radeon 9600 can attain reasonable frame rates in Half Life 2 seems to suggest that M11 will surpass that marker, perhaps making AA and AF possible in HL2 while attaining reasonable frame rates.