That is very debatable....
I could probably write several pages on the topic of 4k console gaming but it will be a waste of time.
Consider this though, a gtx 1080ti just scrapes the barrel at 4K gaming, it's a real native 4K at high fidelity and it really struggles to do so, many games it simply comes up as inadequate yet here we have a console with half the performance using pseudo techniques improvise 4K and everybody is jivedancing to the lower quality.
lol. You cannot compare the 1080ti to the very specific to DX12 GPU in the Xbox One X.
http://www.eurogamer.net/articles/digitalfoundry-2017-project-scorpio-tech-revealed
"The bottom line is that Scorpio's six teraflops will almost certainly go a lot further than an equivalent PC part. I asked Microsoft about this specifically, and they raise a number of good arguments that make the case strongly. Firstly, that their shader compiler is far more efficient than PC equivalents (think of shaders as native GPU code). Secondly, addressing the hardware directly via their API and with access to console-specific GPU extensions again adds to the advantage of a fixed platform box. And finally, they point to their optimisation software - PIX (Performance Investigator for Xbox) - as a tool that provides the path to console-specific optimisations that PC simply cannot get."
It is very easy to sit on the sidelines and pretend to know what you're talking about. The reality is you don't.