I would go with only RTX cards, I can bake AO maps in 1s with Ray tracing on my RTX 2080, Unity also supports RTX cards etc. AMD isn't great for Game Dev.
I would go with Intel if you use your PC for work. 8700k should be enough if you aren't rendering, later you can even upgrade to 9900KS (5ghz on all cores) Buy some very cheap ram, intel will work great even with cheap ram. AMD is just too expensive because if you need 32 or 64gb ram you will spend a lot of money to get…