I'll read an artical, blog.. whatever for anything showing that level of improvement and if so... the MF messed up bad and you're just fixing the defect. Maybe you saw a full system OC and the CPU, RAM and GPU together gained +20 fps. Running DDR3 at 1866 CL5 and 3200 CL17, while the second may be faster the first completes a full cycle sooner and in turn may move more data. So be careful getting caught in the "whoes number is higher" treadmill. Lastly, I certainly believe if you learn the right way maybe you could OC everything possible in your machine at get good fps boosts but you should start reading about it and test on your own machine then come here if you have problems or need assistance. Again it's been a while since I've had to do any of this ever since XMP profiles became a thing.