Looking for advice on upgrade

the ram and gpu looks ok for now but id go the ryzen amd route for cpu as for the gpu stocks arent that good at the moment anywhere how old is your rig dude is it for gaming and designs,my rig is now 5 years oldspecs,amd 8 corefx cpu,24gb high speed ram ddr3,15tb of storage,gtx960 shes still goes i use for blender renders and stuff dont game.

Really you need a whole new PC not just one thing.

CPU is very low-end for the latest games, that would be my personal priority, at least with a GTX1660 you can lower some settings for the desired framerate, trying to play some of the newer games on a 4790 would be painful.

I would suggest selling the full PC as it is and buying a pre-built, it's the only half decent way to get any sort of value these days. As you aside yourself you'll pay your entire budget for just a half decent card and you'd still be hugely hamstrung by your CPU.

Otherwise, a Ryzen 5600, B550M, 16GB DDR4 3600mhz and a nice 1TB nvme. Not too sure what Intel are at these days in that price range but a 10th gen i5-K would be similar price and perform very similarly. It can be all swings and roundabouts very much depending on what your needs, demands and expectations are.

Intel is good for budget, something like i5-10400F is pretty cheap and a solid budget processor, six cores and twelve threads, versus 4/8 in your old i7, and much faster per core.

Either way, worry about the card down the line, a GTX1660 will get through for now.