I am currently running an Intel Core 2 Quad PCU Q6600 with a GTX 275,6Gb of ram on an ASUS P5N-E sli motherboard. I would like to know if I can simply drop a 2Gb GTX 650 into this system, or will this GPU not be compatible at all? Alternatively, is there a DX11 capalble card I can use with my current system as Im not ready for a complete upgrade at this time. That will happen when we start to see UE4 games.