System Requirements
 

I'm wondering how taxing actually running the server is. Right now I've got Google Fiber, so I'm not really worried about bandwidth.

The EQ instance is hosted on a VM, both the VM and the box itself are running Windows Server 2012 R2 Standard.

Right now I only have 4GB of ram and 2 CPU cores (~3.5GHz) dedicated to the vm, though that's what I applied when it was just my Plex and database vm.

That is probably more than you will ever need. Now saying that, it also depends on what you are doing. If you are also hosting your website, Alla, wiki and such and you get enough web bots hitting your database all day long it can make a difference. I sometimes see my MySQL instance consuming two cores but I currently have 16 cores on that VM. If you are doing just the EqEmu hosting then you will never hit the mark unless you have plenty of people spreading out of many zones.

Yeah man it doesn't take much to run a server. I've got mine running on a single core 1.6ghz 3gb ram laptop with 5400rpm hdd. And I can run it with 50 zones easily