That motherboard should be still good for quite a few years, my motherboard is older. Your CPU could use an upgrade to an 8 core and upgrade your ram to 32G especially as well if you are wanting to be de doing 4k Ultra gaming and of course an ssd if you don't already have one. I usually look at the most recent game that I play with good graphics and see what they ask for Ultra, this case I used the
system requirements for Diablo 4. Lasty look for a good 4k gaming monitor and of course you can upgrade it a part at a time