Probably not, you get what you pay for. I'd say run it as far as you can go with whatever your willing to spend on cooling and keep an eye on load temps and make sure they don't ever go beyond spec (62C for 1090T). Bottom line, more heat=less life. Heat/voltage also speeds up electromigration (the copper atoms move around till they start shorting adjacent traces,which can be measured in atom diamaters away). Even at stock most of the newer cpu's are lucky to last 5 years (part of the reason why they are warrantied for only 3). Personally I just use a modded air conditioner, overclock the hell out of it, and swap chips/cooling heads every 3-4 years and sell the old chip on ioffer when it's close to dead. By then the new chip is twice as fast anyway (180,90, now 45nm, good till 22nm in 2013 or so). 1090T= 4.6ghz stable (-35C under prime 95).