>>16942361
Buying parts to upgrade your system would be almost as costly as replacing the system. If you're really on a budget, pick up a B450 motherboard, a Ryzen 3600 CPU, 16gb of DDR4 3200 RAM, and an RX 570 video card. That will play any modern game for $400, provided you already have a case, power supply, and storage. Move up to an RX 590 if you can, because with good shopping, you can find one for just a few bucks more. Strip your old parts out of your case current, store them nicely, and sell them all on ebay real cheap as used parts to recoup some of your cost. If you've taken good care of your case, don't feel like buying a modern one, and you like it, you might as well re-use it.
If you insist on plugging some new parts into your board, we need to know what you've got. The best you could hope for is a motherboard that you could drop an FX-8350 into. I used one from the month it released up 'til two months ago. They're still capable of playing basically every game at about 60fps. Kept mine overclocked at 4.5ghz at a lower voltage than stock boost.