If by the 1.8GHz Athlon you mean the 2200+, then I don't see how that's possible. They just announced the release of the XP 2200+ on the Palomino core recently and the 2GHz Willamette has been out for some time. The 2.0 and 2.2 Northwoods are newer chips but they still predate this announcement. As far as I know the release of the 2200+'s is only in Japan... no where else yet, and the T-Bred core isn't going to be out until May. I haven't seen any evidence in any benchies or reviews that Intel's 2GHz chips, Willamette and Northwood alike, are not actually running at 2GHz.