Exthefun

Hi guys I want a new graphic card maybe [h=1]Nvidia Geforce 9800GT but I dont know does my computer can run this graphic card My Desktop spec: Windows 7 Professional 64-bit AMD Phenom II X6 1055T Processor (6 CPUs) ~2.6 GHz 8192 MB of RAM AMD 760G and can you tell my why in AMD online shop graphic cards are between £20 and £30? and can I see somewhere online does my computer can run a graphic card that I chose? [/h]