I don't think you should overclock. Overclocking in my opinion is a hassle and too takes too much time (testing for stability, if unstable do more tweaking and test again for stabilty). Besides instability, you can get data corruption, risk damaging whatever you are overclocking, and shorten the life of whatever you are overclocking. Don't get me wrong, when I had my 3930k oc'd at 4.2GHz I had a strange problem with Intel Burn Test when after running Intel Burn test, the result box that tells you if the system was successful during the test didn't appear on the screen even though it didn't crash or BSOD my system during the test, so I didn't know if the test was a success or not. Maybe it was a bug in the program or maybe my system was not stable from the overclock, but overclocking just added another element to the problem. If you want faster CPU performance, my suggestion is just buy a faster CPU and sell your old one.