Since the X5690 isn't the same gimped die as the 3960k. I suspect it doesn't overclock at all since it has a locked multiplier and if you go more than a couple mhz over the stock bclk it will crash on you. Xeons aren't designed to be overclocked, they're designed for stability, that is why it is a server CPU. LN2 benchmarks are eye-candy. Since CPUS can handle LN2 24/7 and since LN2 is a viable 24/7 overclock. It really doesn't matter, it's just a "look what we did!" kind of thing. Don't start a flame war.