Well, there is no question that the PS4 has a more powerful GPU at 1.8 TFlops vs Xbox One with 1.2 TFlops. And the PS4 has faster ram, but that ram also has a higher latency. So we will have to see how that works out. I have a feeling it is also going to be a pain to program for the new PlayStation, all over again.
The big difference I see is something I got from one of the tech talks from Microsoft and Sony's tech spec. It looks like the PS4 CPU's will make one execution per CPU per cycle, while the Xbox One will make 6(!) executions per CPU per cycle. That make the Xbox One's CPU looks significantly more powerful. I am not sure if this is a misunderstanding or some magic they are doing with the cache. But it sounds like the Xbox One might be better in the CPU department.
Then will we have arguing over which is more powerful all over again.
Additional Info: "Some performance numbers were given for the CPU and GPU themselves but these cast more shadow than they do light. Microsoft claimed that each CPU core can perform six operations per cycle. The CPU is believed to be using AMD's Jaguar core, but typically this would only be described as able to handle four operations per cycle; two each of integer and floating point (though even here counting operations is complicated; the floating point operations could use vector instructions such as SSE2, in which case one operation would result in four actual computations, potentially giving eight per cycle for floating point alone)."







