Hi, I have a slim line pc and cannot afford to buy a new pc (because of my mother). I was wondering if there is a card that is better than the radeon hd 7750 and can be used in a 250w power supply. If Radeon Hd 7750 is a good deal, which of the following would I choose? One is cheaper than the other, but I don't know which is more powerful. Please tell me which one and why.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131480
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202002
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131480
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202002