This is an interesting article on the capability of multiple core processor is available here and gives some interesting information on various benchmark testing.

It all depends on the software application and whether the software is capable of multiple threads for quad core support;

Video editing software such as Corel VideoStudio Pro X2;

http://www.corel.com/servlet/Satellite/u...mp;tabview=tab0

benefits from Quad Cores having quad core support. A free trial for 30 days might be useful for testing if you intend to edit High Def Video such as 1080i and 720p video and even has Blue Ray writing support for archiving HD video.