I'm really getting sick of these neverending "PLEEEEEEAAAAASE, STOP MENTIONING THAT THE PS4 HAS 50% MORE POWER!!!"-threads.
It just never leads anywhere. Most hardcore Xbox fans will never accept that PS4 has indeed 50% more power and keep posting links to some article written by a single person who claims that there will be no difference and consider it the ultimate proof. The PS4 fans on the other hand won't accept that at the current state of console graphics, "50%" more power simply does not translate to "50% better graphics". The difference will be rather small in the majority of multiplatform titles and more obvious in exclusives, where PS4 will for example show more detailed, high-res textures.
If both sides could just agree on these facts, they'd start debating percentage values of how much better the graphics will look to the human eye, and since there is just no serious measure for that, the fanboys of both sides could finally waste their time with even more pointless, neverending nonsense debates that by their very nature can never lead anywhere. Hooray!