I would try using a ryzen 9 5900x or if you want to go for a switch and use an intel cpu either get a i9 10900k or wait for their i9 12th gen to come out also for a 3090 i would try to get ddr4 3600 or ddr4 4000 or again wait for ddr5 to come out in a few months and i would also suggest to get a...