function said:
Where do AMD go from here?
At this point, I am not sure that anyone knows.
If I were AMD, I might start by trying to figure out what not to do.
If we look at their competition (Intel), its clear that their manufacturing advantage is significant and will likely be maintained. If that is the case, then trying to compete with them in absolute (x86) performance is simply not feasible. So that leaves two other important metrics by which they might compete: performance/watt and performance/dollar.
Honestly, AMD can not compete with Intel on performance/dollar if Intel doesn't want them to. However, they don't really have to win that metric as long as they can offer a lower absolute cost and "good enough" performance.
Performance/watt is another matter. Here is where they absolutely must be competitive with Intel in both single-threaded and multi-threaded cases. This is where Bulldozer & Piledriver have really failed. I don't think significant power savings were to come until Excavator, so that may be why Steamroller has been delayed or cancelled. At this point, they should probably just skip to Excavator & 20nm. If at that point they still can't get competitive performance/watt, it's time to call a spade a spade and ditch the Bulldozer line.
Alternatively, they could just scrap the Bulldozer line now and evolve the Jaguar line. This might make more sense as the Desktop PC market at this point appears terminal. By the end of 2014, we could be seeing 4 (or even 8) core Armv8 tablets & phones with hybrid memory cube RAM, and 128 GB+ of storage. At that point, the casual/office use desktop is dead. An interesting consequence of this is that as the consumer PC becomes something you carry in your pocket, it will also likely cease to be x86 and Windows based.
That leaves ultrabooks, servers, & HPC. AMD's x86 offerings will then be competing against their ARM offerings... At this point, it should be clear whether or not their is a reason to continue x86 development at all.
If they can weather 2013 and the fact they have no real answer to Haswell, I think their long term prospects are decent.
To sum up:
Performance/Watt > *
Performance/Watt/Transistor (important for profitability)
Be on board with HMC [I don't know if this product will live up to all of its promises, but if it does, it isn't something you want to lag behind on]
Focus on what you are good at [Right now that is GCN and presumably GCN2.]
Figure out a way to survive 2013 & Haswell.