When is it time for a database server?

[JPigford]

Right now I've got one server with the following specs:
Dual 2.8 Xeon
2GB RAM
250GB Storage
2000GB Bandwidth

I've got about 25 sites on there, 20 of which use one or multiple MySQL databases. Would I benefit from having a separate database server? If not, when would it be necessary?

[txbakers]

Web page serving takes very little processing. If you don't have anything else that eats up processing on the server you're set for quite a while.

If you also run a mail server, active FTP, CRM, anti-virus, etc. on there, then eventually you will starve the database for processor power. Then it's time.

Usually when users start to complain is a good time to upgrade.8)