I would like to know what are the minimum system requirements for Force.com IDE (plugin for Eclipse). Requirements for not just being able to run the IDE but also to use it comfortably and efficient. Running on 64bit Windows 7 or Windows 8 maschine. 

I know it's based on Eclipse and I could just look for Eclipse minimum system requirements. But I know that in Eclipse, it always depends on what you are developing, what programming language, what plugins you use and how you use them. For example, developing simple web page (HTML, CSS, JavaScript) doesn't require as much resources as developing a sophisticated web application based on Java EE technologies.

I could't find info specific to software development using Apex and Visualforce in Eclipse.

EDIT:
I'm asking about hardware requirements: CPU, RAM, HDD speed