steppman2

Strachkvas1
If you use your PC for work, Ryzen 5000 is superb platform. 5950X can do really a lot of heavy working and personally I love it. You can pair it up with fast RAM and if you do not need a lot of connectivity B550 motherboards are not that expensive (I have got B550 Aorus Pro V2, because it is very strong RAM OC motherboard, see Buildzoid's video about it ).

Lastly if I were you, I would stay away from 5800X, because it can run hotter than 5900X (5800X gets worse quality chips and thus it needs more voltage). 5600X is enough for gaming and 5900X is sweetspot for its price and performance, 5950X costs premium but it is really worth it if you need "unlimited power" 
 
Also you talked about DDR5 and their price. DDR5 should be EEC memory, thus it will be more expensive than DDR4 counterparts. Also it is new technology, therfore high-end DDR4 should perform better than DDR5 (we would have to wait for better DDR5 models). I have old i7 3770K with overclocked RAM at 2800 CL12 and it is pretty good when I compare it to stock DDR4 at 2133 MHz.

I agree with all of this lol, I have memory running at 3800 C16 on this setup (4000 C16 when I have my RAM cooler in place) and it definitely improved things over my previous memory kit (went from 4 x 8GB 3200 C14 to this 2 x 16GB kit) so memory clearly impacts things more for Ryzen 5000 (I had a 9900K setup before where a memory upgrade did almost nothing) than most. I have an x570 board but only because I'm moving to 3 x PCIE 4.0 M.2's but I also built a system with a B550M in it and it was fantastic.
 
As far as the 5800x I briefly had one (less than a week) when I setup this system before driving the hour to Micro Center to grab a 5950x...it ran hotter than my 5950x and wasn't great for my work compared to my 9900K (better, just not as much as expected) whereas the 5950x was MUCH better from the start, even without turning on PBO (but once that was on it positively screamed). 5900x is a better buy though if you don't need the extra cores for your workloads.
 
As far as DDR5 yeah, pretty much every generation is a bit slower from the start then once things pick up it passes the old version. Hopefully there will be an eVGA AM5 board shortly after the socket launches because I'll definitely try it out but buying an AM4 now won't be a mistake, especially if you need it for something. You can still sell 9900K systems even though the socket on those has been replaced and there's no upgrade path...if you need to flip the motherboard and CPU later you'll be able to, even if it ends up being much faster and with more features than AM4.

Gato84

goodgmr
I guess the best time to upgrade is now, if not for this strange shortage that seems to be going on forever. Hope it lets up soon.

Yes. I suggest you to try getting the CPU or GPU in the first place. After you get one of those, then you start buying the rest of the parts. I started some months ago with the upgrade of my computer, but it was not easy. It took me one month to get the Ryzen 9 5900X. After I bought it on Amazon, then I started to buy the other parts of the computer.