- The truth for this specific CPU question:
You won’t get any hard numbers. No situation with clients, Query is the same on each server.
It all depends how much activity you got on server.
You may have a server where only default groups exist and these 250 users are split in channel with max 2 users. So the load is not that high.
You may have the same 250 users in one channel and the load is much much more because talk status and every other data needs to be shared with these, which wasn’t the case before and so load becomes much higher.
Or these 250 users do switch a lot and get new assignments of groups. Which also causes load.
Or these 250 users do switch a lot but only some of these can see into other channels. Which reduces the load again.
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For bandwidth you can calculate:
https://support.teamspeak.com/hc/en-us/articles/360002710657-How-much-bandwidth-does-TeamSpeak-require -
For RAM the 1GB for these 250 users should be enough.
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For Hard disk 15MB may be enough, but when you plan that users can upload images and avatars, then you may need much more than this. 15MB is the bare minimum.
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2 Cores may be enough, but we can’t ensure hard numbers as I wrote above.