incrediBILL - 10:59 pm on Jul 20, 2013 (gmt 0)
If you look for ultimate speed, you look for static content.
And there are WordPress plugins that do just that, except they call it 'cache' instead of static pages.
However, one thing to make sure of is that you aren't using the default WordPress code which sends ALL file requests, including graphics, PDFs, etc/ to PHP which is nuts.
See this Apache/WordPress thread for details: [webmasterworld.com...]