at your resolution the 7850 and the 650ti perform similar. the 7850 is about 2-3 fps faster in some games. however, if your going to be playing battlefield 3, farcry 3 or crysis 3 then the 650ti beats the 7850 hands down. if not get the 7850.
Annihilator V2.0Processor: Intel Core i5 3570k @ 4.5Ghz @ 1.3v With Zalman LQ315Memory: 8Gb Corsair Vengeance Pro 1800Mhz 9-9-9-21-1THard Drive: SanDisk X110 128Gb Toshiba DT01ACA100 1Tb Video Card: Asus GTX 780 DirectCU II 1162Mhz Core 6600Mhz MemoryMonitor: LG 24" 1080pOperating System: Windows 7 64 bit ProfessionalMotherboard: ASRock Extreme 6 Z77Case: Coolermaster HAF 932 with Corsair HX1050 PSU