Official system requirements

Originally Posted by Royraiden

Thats a big waste of performance and more if you are running at resolutions higher than 1920x1080 such as those from more than one monitor setups.

I think he was getting at there being no performance increase when you have a single monitor setup at a reasonable resolution, as opposed to a dual monitor setup and huge resolution.

This is what I'm guessing (reaching at) from his comment and common sense (I hope). If there is no performance increase when doing more than one monitor or huge resolutions then they must have really done something wrong when coding this mother.