Look and evaluate the assembly of the PC, are the components suitable for each other, are the component companies chosen correctly, is everything correct?

Question

Computers

Memory DDR4 2x8Gb 2666MHz Corsair CMW16GX4M2A2666C16W x 1 6770.00 rub.
Intel Core i9 9900 Soc-1151v2 (CM8068403874032S RG18) OEM Intel Core i9 9900 Soc-1151v2 (CM8068403874032S RG18) OEM x 1 33730.00r.
Case Cooler Master MasterBox Lite 5 RGB ATX (Color: Black) Case Cooler Master MasterBox Lite 5 RGB ATX (Color: Black) x 1 4570.00р.
Motherboard Gigabyte Z390 GAMING SLI Motherboard Gigabyte Z390 GAMING SLI x 1 11180.00р.
Cooler(cooler) Deepcool NEPTWIN V2 Soc-FM2+/AM2+/AM3+/1150/1151/1155/2011/ 4-pin 18-30dB Al+Cu 150W LED Ret Cooler(cooler) Deepcool NEPTWIN V2 Soc-FM2+/AM2+/ AM3+/1150/1151/1155/2011/ 4-pin 18-30dB Al+Cu 150W LED Ret x 1 3220.00 rub.
Gigabyte PCI-E GV-N208TAORUS-11GC nVidia GeForce RTX 2080Ti 11264Mb Video card Gigabyte PCI-E GV-N208TAORUS-11GC nVidia GeForce RTX 2080Ti 11264Mb x 1 92150.00р.
Power Supply Thermaltake ATX 1200W AMUR W0430

Answer 1

I would add another 16Gb of RAM and change the SSD from SATA to NVMe.

Answer 2

Wait for a new generation of graphics cards

Answer 3

Your RAM is too small, I would take 2x16 and with a higher frequency, 2666 will not be enough. And changing the SSD protocol from ahci to nvme is a moot point. Depending on what you collect the computer. Nvme does not cope well with small files, but well with large ones, ahci has the opposite situation, which is why the latter will boot the system faster.
I also do not understand why atx board format

Answer 4

9900k and 2080ti with a Deepcool cooler? Is this some kind of joke?
But seriously, why now take the ninth generation of Intel, when the tenth has already come out significantly cheaper?
And for games, 10600k and 2080 super are ideal