Everything has been running fine for me, but today I thought I would try a little overclock in afterburner putting the core to +200 (review sites have been putting it to 300+/400+) and leaving the voltages and memory at stock, either I am going crazy or something weird is happening but I noticed the odd stuttering in games that were not there before, TW3 been the worst, even GTA V had the occasional fps drops where before there was not really any.
So not sure whether an overclock can cause that behaviour or whether it's something else but for now I am going back to stock clock speeds in the hope the problem goes away.