How many WoW clients can my computer run ?

Hello, I'm planning to start multiboxing but I'm not sure about how many clients my computer can run so before investing for accounts I wanted to ask for help. My goal is to run 8 clients but not sure if that is possible, below is my computer specs

CPU : i5 8600k @4.6ghz (can probably go up to 4.8)
RAM : 16GB (2x8)
GPU : ASUS ROG STRIX RTX-2060
SSD : SAMSUNG 850 EVO 240GB

Edit : The quality of the graphics is not of my concern while playing as long as the game can run smooth. I only plan to farm gold on my free time from raiding ^^

If you want decent settings and fps, with 6 cores and 16gb ram, i would settle in for a nice 3 man setup. 2 cores each game.

You can push it to 1 core per game and even beyond, if you have enough/more RAM, but the performance will suffer a bit, but feel free to try it, if you dont mind. With 16gb ram, i would do max 5 accounts (with many addons, netflix on sidemonitor, chrometabs open etc you can hit 16gb ram in use, so thats why ive used min 32gb ram on my 5man pcs).

Really depends on your settings, how you want to play and what you play, but you probably can't go beyond 8 clients for farming. Your cpu and ram will bottleneck.
For farming you do not need more than 30fps on main and 12-15 on slaves.