8 box

[WOWBOX40]

The cpu and ram you got fits a 5man ok"ish.
Get 64gb ram and it will 8man, but nothing stellar performance wise (all on lowest, lots of fps drops). But its a cheap way to test it out, by just getting more ram.

Your future goal imo is to get 64gb ram and a cpu that ideally give atleast 2 cores + 2 threads to each game. Amd 3950x would do nicely. You can keep using the 480, but its getting old now and you would see a nice fps increase by getting f.ex a amd 5700 xt with 8gb vram. The 5700 xt will do nicely up to 10 games.

Warning, do not get this fail asus card though: https://youtu.be/OJU8jKIYtS4

Ive bought and used many different cpus over the years, its only recently that ive finally found something im happy with:
5mans: amd 3900x, 32gb ram, 6gb vram.
10 man: amd 3960x, 64 gb ram, 8gb vram.
Ofc all slaves on settings 1 with some sliders increased. Dx11 legacy. 1080p. Fps 60 front, 25-30 back. Main game with many settings increased, tweak to your liking. Smooth gameplay.