XS tested a retail boxed E6850 (G0 revision) last week and got an easy 4Ghz overclock on air @ 1.48Vcore. (although the box clearly shows max voltage is 1.35v. ) Anyway, these are what will be hitting our shelves very soon.
http://www.xtremesystems.org/forums/showthread.php?t=150381
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http://www.xtremesystems.org/forums/showthread.php?t=150381
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