I'm interested in potentially upgrading my computer to run SC better and on higher settings, [right now I barely run at 30fps and tank when I get close to anything like a connie]. I have the following in my system, but I'm no computer wiz, so I do not know what I need to upgrade, and what I need to upgrade too: Intel i7-4790 @ 3.6 GHz 12 GB DDR3 NVidia GeForce GTX 745 [4gb dedicated memory] Thank you in advance.