What to Expect From AMD at ISSCC 2011

[informal]

Yea you're right I will wait and see how BD turns out but that doesn't mean I wouldn't still concider SB if BD doesn't perform well enough. Seeing how I'm an overclocker, BD will have tough competitor against 4.8~5GHz SB.

You think 8C BD @ 4.8-5GHz(OCed) will have a tough time against SB at the same speed? Probably yes in superpi.Almost certainly not in multithreaded applications .
Thuban,which was not a high frequency design, with 6 cores on 45nm does 4Ghz on air today . Imagine a 32nm grounds-up 8 core design with highK/mg,with specialized circuitry that allows higher frequency and lower power draw(for a bit larger die area),that was designed for higher working frequencies. It will certainly OC very well.The only question an enthusiast may ask is : Is there a cold bug ?