there seem to be many people who view 1GHZ as the limit for GPU clocks... it's just another number like 800 or 900 I am willing to bet we will see a bunch of GTX 560ti's pass 1GHZ. might be the norm there will be a good number that will, we might even see cards hit that consistently on AIR. but if one thing can be said about fermi, it's that it OC's very well from the high end to the low end.