So i'm looking for a quad channel kit of G-Skill RAM. I was pointed towards getting one quad channel kit rather than 2 dual channel kits. The problem is that I can't find a quad channel kit for the G-Skill Sniper 1866 MHZ, Only the 1600 MHZ. I did find a quad channel kit of the G-skill Ripjaws X series. What is the difference between these two brands? Also, what is the difference between 1600 and 1866 mhz. I do know the G-skill sniper is slightly lean towards for better overclocking ability.