This is my first and main computer (for gaming, browsing, and word processing) and would like to play Starcraft II, Dragon Age Origins, and Fallout 3 on it with medium-high settings. As it is now, only low settings is possible.
Will upgrading my RAM increase performance?
Should I upgrade my RAM, as in, is it a 20%-40% gain in general performance?
Changing from a 32bit to 64bit OS is not an issue, but money is. Deciphering from the website below, would 4GB or 6GB be a better deal and will the 6GB provide a significant gain over 4GB; as I am willing to get either if it's worth it?