I am looking to upgrade from my old power hungry NVidia 460 2win to something more efficient and effective. I do belive I have narrowed it down to three options. 2 of them are the EVGA GTX 660 Super clocked here http://www.newegg.com/Product/Product.aspx?Item=N82E16814130833 and here http://www.newegg.co...82E16814130835. The difference between them is that the second one has 3GB of GDDR5 ram not 2. Or the XFX Double (I believe the double just means 2 fans) Radeon 7870. All of these cards are at the peak of my price range I can't really go much higher. What I want to know is which will give the most performance upgdrade from my EVGA GTX 460 2win here http://www.newegg.co...82E16814130626. I have 8 gigs of DDR3 ram and I have an AMD Phenon II Six core processor at I believe 3.4 GHz. Now what provide the best upgrade in performance from my current card? Power supply is not an issue I have an 850 Watt psu. I play Warframe, Borderland 2, Skyrim, Battlefield 3, planning on getting BF4. I run a single monitor at 180p....