at very least 50% over Phenom II, because AMD's engineers know very well, if the minimum 50% couldn't be achieved; it would be doomed, as Intel will be launching new architecture to counter BullDozer's architecture.
From the paper, it is very clear that BullDozer is going to be benefit from the new design in terms of power dissipation and much higher IPC in ALU and FPU. Hopefully BullDozer could make use of build in GPU to do much of the FPU intensive job.
Expected to be about 80%~100% over current Phenom II in certain area like encoding and ALU, overall is 60%.






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