Quote Originally Posted by XRL8 View Post

Even if IPC core per core would be the same,you still have 33% more of them for multithreaded work.You have new instructions for specialised code (AES SSE4.1 4.2 etc) which will give biig boost for some parts of the code.And on top of that you have big turbo for single threaded works.All that at lower manufacturing costs than thubans.
Don't forget 4 and 6 core versions of bulldozer, which would mean that the 6 core version would perform the same as Thuban (according to OBR that is), that's why I doubt AMD would invest so much into a new chip for the same performance they have now. IPC core per core should at least be 10% more for Bulldozer, but that's just me guessing