Hello, I am new here. I wish to upgrade my graphics card, and the Zotac Nvidia gtx 660 2gb Synergy Edition seems interesting(I am from India, and this is the best card available for my budget), so am wondering whether my CPU(i-5 660@3.3 ghz) and 4gb ram are compatible with this. I have 300 watt psu, but am going to get a 450w one soon. And I may be upgrading my ram to 8gb as well.