Which of these cards is better? The gtx 670 and 7950 are the same price. The GTX 760 is $50 more expensive. All the cards are new and come with a full warranty. I am also on a budget, but will spend more money if needed.
MSI GTX 670 OC 2GB $215
http://us.msi.com/product/vga/N670GTX-PM2D2GD5-OC.html
Lantic HD7950 3GB $215
http://www.lantic.com.tw/product_info.php?products_id=3
Asus GTX 760 Direct CU II OC GB $270
http://www.asus.com/us/Graphics_Cards/GTX760DC2OC2GD5/
MSI GTX 670 OC 2GB $215
http://us.msi.com/product/vga/N670GTX-PM2D2GD5-OC.html
Lantic HD7950 3GB $215
http://www.lantic.com.tw/product_info.php?products_id=3
Asus GTX 760 Direct CU II OC GB $270
http://www.asus.com/us/Graphics_Cards/GTX760DC2OC2GD5/