Considering the price range of 4000$ to 5000$, is this config best for working and cinematic rendering inside of unreal engine? Or do you have a better suggestion to change some parts?
You need a lot more RAM. Try 256 GB. Ideally, across 8 DIMMs for maximum channel goodness.
You should go for more cores. Try the just-released Threadripper 7970X maybe? Or even the 7950X would probably be better, because all the cores are “performance” cores and have two threads, rather than the slower hybrid of the 13900K, but there it’s more of a trade-off.
Lots of small disks is kind-of annoying when you run out, and in general, M.2 disks get faster the bigger they are, so I’d rather take a single 4 TB disk.
I ended up with the super-crazy Corsair 1600W PSU, mainly because of its runs very cool when not at full load; that might not fit your budget though. Also, a 4090 plus a single CPU (even a big one) will run fine on a 1000W PSU if it comes to that. Might even work on an 850W.
Of course, whether this fits in the budget depends also on what kind of price you can get on the 4090, which is the right card. With the upcoming “Super” versions in a couple of months, you can hope that it will come down a bit perhaps.
Anyway, if you change nothing else, I’d add more RAM first, and get a single bigger disk second, and the more-capable CPU third.
The most important thing that is bothering me now is discussing two things. How effective is the selection of the rog strix 4090 model compared to the TUF Gaming 4090 model in Unreal Engine environment. And the next issue is choosing a cooler for the CPU. Is this cooler that I wrote enough or not?