Best graphics

Hi all, I’m using series x at the moment and all the issues aside I still love the sim. I’m a bit of a graphics nut and want the best graphics and visuals when I’m flying.
Question is are the graphics really so much better if I was to move from series x to a super pc? Would changing from a 4k UHD 65” tv to a good monitor make it better on the series x or still would it be super pc and monitor?
Sorry for so many questions but I’m willing to shell out a fair bit of money but just want to make sure it’s worth doing and I see a noticeable difference.
So should I just go for a super monitor with series x or pc and monitor what would your advice be please?