are these components you're looking to buy? if so, scratch that RAM and get a reputable brand @1600Mhz (you won't need anything over that) and if you're thinking of pushing 780SLI, just get the 780Ti (and save some cash in the process or get a SSD of at least 128GB with the savings). Make certain that you will be gaming around 1440pm else is a uber waste of cash
Best Luck