I have been fighting with my system for months, and months now. I've had a bunch of problems with this build, and so far I have changed EVERYTHING, RMA CPU, upgraded mother board, upgraded PSU, and I can't figure out what is going on with it. During games like Borderlands 2 I get massive stuttering, and dropped frames to low 40s, I have my CPU overclocked at 4.8GHz, and I am running an EVGA 780ti superclocked card. I am using Vengeance 1600 2 x 4GB modules, and I've even swapped with my room mate for his ripjaw x sticks. Both are the exact same specs. When I run Passmark, everything is as good as it gets until you get to the 2D, and Mem tests. My memory is quite slow in its read and write speeds, and I don't understand why. I was thinking about picking up http://www.newegg.com/Product/Product.aspx?Item=N82E16820231623 or http://www.newegg.com/Product/Product.aspx?Item=N82E16820231617 to see if the speed fixes my issue or not. Regardless I think I am going to pick one of them sets up anyway. I just really need help before I throw my computer out the window! 
