It's not realistic or fair to compare PC's with consoles. Even if the console shares a software layer API with PC it is going to be far more optimised because the hardware is static and doesn't have to cater for multiple configurations. Microsoft has fought a propaganda campaign to make it seem like there is no difference in performance between ps4 and xbone pushing developers for parity between versions, end result is all the ps4 is really getting is higher resolutions and frame rates. Personally I would have liked to see more ps4 games at the same resolution as xbone but with richer graphic detail on screen. I don't own either ps4 or xbone but common sense dictates both companies will be optimising their software to maximise performance. DX12 is not some golden dawn of a new xbone performance level. The reason more recently some xbone games have performed better is developers have clawed back wasted resources that were originally utilised by kinect. The ps4 has far superior memory bandwidth and a largish improvement in gpu performance. The ps4 will lead in performance for the vast majority of games and there will be a few games possible on ps4 that won't be possible on xbone where ps4 only just manages to achieve playable performance.
