"Yesterday at Gamescom 2013 AMD’s senior product manager, Marc Diana released a statement in which he touted the PS4 as being far superior to the Xbox One in terms of performance due to its inclusion of the hUMA processing system."
Read more at http://gamingbolt.com/amd-retracts-h...6PvjAFxjfdS.99
Now remember this is the CPU were talking about not the already known power difference in the GPU. AMD is the CPU maker for both consoles.
"PS4 'blew me away,' says AMD graphics architect"
http://www.psu.com/a019038/PS4-blew-...hics-architect
"Everything that Sony has shared in that single chip is AMD [intellectual property], but we have not built an APU quite like that for anyone else in the market. It is by far the most powerful APU we have built to date, it leverages [intellectual property] that you will find in our A-series APUs later this year, our new generation of APUs but none that will quite be to that level of sheer number of cores, sheer number of teraflops."

Comment