Im building a new rig. I am a owner now of an oldd core 2 quad Q9550. I want to chose between those 2 cpus. i7-4790 and i7-4790k. I know that one is for overclocking and the other is a locked cpu. I want to know which cpu will last more? I think that now I wont be overclocking, but after I will. I want this computer to last around 3-4 years.