OK first sorry for my bad english, a few day ago i bought a new gpu, the xfx r7750 , then i test it with some game: Far cry 3, Battlefield 4,nfs rivals, i know i only have 2gb RAM,and intel core 2 duo 1.6ghz, that make almost all game lag, but before i buy the xfx r7750 i used the hd 4650, it can run far cry 3 on low at 1366x768 with average 15 FPS , then i test it with the r7750 on ultra and still at 10-15 FPS, then i change it to low, and still 10-15 FPS without MSAA, i already overclock the 7750, what should i do? maybe buy new RAM? Please help, i save my money for 3 month everyday for buying new gpu, and maybe a few more week for new ram or processor