You are welcome
Perhaps another guy with a 580 and 3 gb here? I cannot give u advice. Important is, that you run steam and clod on your ssd, but I think you know that. But I don't know, how much effect the resolution increase will have on your card. Sorry
But second big advice is just to overclock your cpu as clod is getting cpu bottlenecks fast. My i7 is currently running on 3,8 ghz and still sometimes bottlenecks. As you have new generation it would be very easy for you to reach 4 - 4,4 ghz without much knowledge of overclocking. Sometimes your mainboard helps you to achieve higher clocks easily too