I want to ask whether there is a real benefit from a discrete GPU over integrated (intel HD graphics) other than running 3d games, I hear a lot of things such as: GPU computing, watching videos, photoshop, 3d max, etc... But I think that an integrated GPU can handle these applications equally well.
Is it true that the only real use for a discrete GPU is gaming?
Well you should be fine with integrated if you don't plan on gaming but if you have a spare $45 a card like the Radeon 4650 certainly wouldn't hurt and would speed some things up. http://www.newegg.com/Product/Product.aspx?Item=N82E16814102829
Not completely necessary but nice to have and doesn't put a huge dent the pocket.