problem is AMD is too small and their branding is not strong enough to make money off of bad processors. They need bulldozer to succeed because it takes too long for them to pump out a new architecture. Staying with phenom would seal their fate because the architecture has reached a dead end. Adding more cores is the only way AMD seems to be adding performance lately and doing this with phenom will add very little return in performance. Adding 2 more cores to the t1xxx series, to make octocores will not get them very far.
What AMD will need to do is hang onto their niche netbook/ ultra budget laptop line to survive(a problem with this market is it appears to be eroding due to tablets), unless BD is fixable. BD has to succeed if they want to be for longer than 4 years. AMD is in for some pain for the short term though and their stock price reflects this.
I have a feeling performance won't improve that much with Piledriver either. Even if it does require special coding to succeed, AMD does not enough pull to make companies code for it enough to sway the market.
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