Main and primary reason why a lot of games on Xbox One are below 1080p and even 720p is because of eSRAM that is used for GPU since developers need to learn to work with it and when they do then Xbox One will have a chance to outshine PlayStation 4 and since eSRAM is 28nm like the GPU then Microsoft most likely embedded it into GPU thus it will have way higher bandwidth than PlayStation 4 so it will be more efficient and more complex things can be done, since Xbox One has a weaker GPU I think that eSRAM will help to make it neck to neck and DDR3 RAM is fast enough and better for the CPU.
Also don't trust Sony fanboys, Sony was going to do the same thing as Microsoft and MIcrosoft was the sucker who went first and Sony said "O shit!" when they saw the negative reaction, I would not be surprised if some hackers/homebrews decide to not update PlayStation 4 and hack it and maybe they find out that Sony planned DRM.
Sony is a cocky company, that is why their fanbase is so dumb... They ruined gaming and they are worth only shit right now since 3rd party games are not as good as before nor those games are exclusives anymore form 3rd party.
Moderated,
-Mr Khan