Like many people stated above; that's not even old.... O.o like yeah an amd FX 4k series is nothing compared to an AMD Threadripper but these new CPUs are utter overkill for just about anything besides content creation and editing. Hell my laptop I use really rarely has an Intel Core 2 Duo. To answer your question though... I just slowly upgrade parts as I see it fit or necessary. I've been running an AMD FX8350 CPU for over a year and don't really see enough of a reason to upgrade anytime soon for what I do. I have an EVGA GeForce GTX 1060 SSC 6GB and run every game I play on ultra 1080p settings at well over 144fps to feed my monitor's refresh rate. (Also note I only have 8GB of DDR3 RAM and run into zero issues with the amount)