I am not particularly worried. My original one that I just took out a few months ago had around 2 more years of use on it compared to my brother unit.(I swapped them because mine didn't have the built in 8 pin pci-e plug, my brothers did as it was a bit newer). I also had my system overclocked and more powerful graphics cards in it, so mine was taxed more than his. Never had any issues.
Can you provide a link compared the two build houses you mentioned?
Edited by timaishu - 5/19/13 at 12:10pm