I am thinking about upgrading my gaming computer with a fourth generation processor from Intel. I have heard the biggest improvement is with the graphics, but I have a graphics card so I don't really care about that. Are there any speed upgrades that are worth five-hundred dollars in the fourth generation processors or motherboards? I also don't really care for efficiency because I have a desktop. If I get the new fourth generation Intel processors will I need to look for some faster RAM cards because I have the basic low frequency ones right now?