MySQL / Apache Optimizations

[Bashed]

I have a new server that I'd like to optimize:

Hardware:
Dual Quad Core Xeon
16GB Memory

Software:
Centos 6.5 64bit + cPanel
PHP 5.4
MySQL 5.5
Apache 2.4.7

I need to know how to fully optimize both MySQL and PHP/Apache to take advantage of the CPU/Memory as much as possible.

I'm running a vBulletin 4x site and a few other sites. I thought about Xcache/Eaccelerator but waiting for suggestions.

I tried nginx in the past, conflicted with cPanel in a few ways. Not crazy about it.

Thanks

 

[cPanelMichael]

Hello

The following thread is useful for obtaining data in order to optimize your MySQL configuration:

mysqlmymonlite.sh server stats gathering tool for cPanel Server

Thank you.