I wanted to know which card system is better two radeon 7970s running in crossfire mode or one Gigabyte GTX 780 Windforce. If the 780 doesn't surpass the two 7970s can anyone recommend a GTX card that will. Also I found the 780 card on amazon for $788.05, can I get it cheaper anywhere else? Thanks to anyone who helps.
GTX 780: http://www.amazon.com/Gigabyte-GDDR5-3GB-WINDFORCE-Graphics-GV-N780OC-3GD/dp/B00D6KBWA8
Radeon 7970:http://shop.amd.com/us/All/Detail/GraphicCard/11197-12-40G?SearchFacets=category%3AGraphic%20Card
GTX 780: http://www.amazon.com/Gigabyte-GDDR5-3GB-WINDFORCE-Graphics-GV-N780OC-3GD/dp/B00D6KBWA8
Radeon 7970:http://shop.amd.com/us/All/Detail/GraphicCard/11197-12-40G?SearchFacets=category%3AGraphic%20Card