Originally Posted by Mopar63
It is more that what they bring now, it is also what they bring to the future. When the FPU was first put on the CPU everyone talked about how it was not needed, that software did not make use of it. I think in case we are seeing history repeat itself. The impressive part of the APU is not the graphics element but the parallel processing co-processor. Of course no one here seems to want to talk about those things.
The thing is that HSA is not being put to practical use anywhere yet. It might
be the way of the future but as it stands currently its just something AMD hopes will take off. When compared to other parallel processing approaches where (openCL, directcompute, CUDA) is run in the discrete graphics cards memory the HSA is yet to prove its superiority (though personally I am very interested in the potential of this tech but also very skeptical of the adoption rate).
The PS4 will probably be the first place where this type of memory/compute setup is really put to the test in the real world. What devs actually make of it remains to be seen. Even if its proves a success in the console world I find it hard to believe it would get very popular on desktops anytime soon.