I upgraded from a 2600K OCed at 4.4ghz to a 9900K at all core 5.1ghz. I have a 980 GTX and would have problems always staying over 60 fps with all settings maxed out in most games. When I upgraded to my 9900K I also bought a new 1080p 144mhz monitor (I do not see a need for 1440p because 1080p looks good enough for me) and now I am always over 60fps and most of the time locked at 144mhz or close to it. I am very happy with my upgrade to a 9900K. If I was asked if I would get that again over say a Ryzen 3000. I would go 9900K again.