[HELP] New Computer for Gaming and UE4

I got now 64GB - 2400mhz RAM
And here´s the result of 3 hours working on a map in the ARK DevKit:
74cb2d5be783ce2d83a313bf066e7bf661b84c35.jpeg
All other Specs are the same like this what you telled me (512gb SSD, 2tb SSHD, 980ti, 5820K)

Sorry for the bad quality, made the pic with my smartphone a few hours ago^^

Mother of god, 37 gigabytes of ram usage?