No. Definitively it is superior from a hardware point of view. As stated before Sony had an asynchronous compute vision for the next gen games and they found that such games could not be delivered using a traditional PC architecture due to its bottlenecks and limitations. Then they designed what they call supercharged PC architecture.
Yet again, you simply retreat back to the Fortress of Parroted Points. I am talking
specifically about how that article immediately latched onto a sensationalist point that CPU memory bandwidth is too low in modern gaming PCs, and that is simply not the fact. It simply flat out says that in the PS4, the CPU gets
the faster stuff.
Since you like to talk about GPGPU a lot, here are some questions:
Even though the PS4 may be faster at accessing CPU-generated memory, is it actually faster at performing the computations?
Will the hUMA do much more than make GPGPU easier to code for? (i.e. avoiding trying to bounce between the CPU and GPU for different tasks.)
Does the PS4 actually have hUMA?
The latter one is really based off the fact that no one has ever flat out stated that the PS4 uses AMD's newly-announced hUMA. I recall there being some Sony guy that stated that the PS4 would have unified memory, but that's about it. It would make sense for the PS4 to have hUMA, and I would probably bet that it does, but are we really 100% solid?
Right, but you are only considering GPU <--> VRAM. If you consider also GPU <--> RAM, then the overall bandwidth is superior on the PS4.
Like I said above, going from DDR3-1333 to DDR3-2133 makes almost no difference in gaming even though the actual transfer rate is 70% higher.
http://en.wikipedia.org/wiki/DDR3
Keep in mind that most modern PCs use dual channel DDR, which means the numbers are doubled as those are per channel.
http://www.anandtech.com/show/4503/sandy-bridge-memory-scaling-choosing-the-best-ddr3/6