solved their issues and will reach 4Ghz easily this year
Bring it on, I say. 90nm Prescott at 4Ghz is not even going to stack up to an FX-55, which is due out in the fall, and on 130nm no less. Now if Intel has 4Ghz and 2M L3 together, then there may be some trouble, but it still isn't a terrible threat.