sb is different. this isnt like the 4 ghz club. where everyone tries to brag about how low the voltage is...lol
you want to brag at how high your multiplier is, regardless of voltage. or how high your bclk is. still regardless of voltage.
and sb seems to be intels way of getting sales of more chips that ever before. why? because no anyone can over clock them and compete with the big doggs with out spending 1000 dollars to do it.
(speculation of course)
i lucked out on my 56x and i almost sold it. till i found out that these chips were hard to come by.
and that 30 dollars below retail depends on the multiplier of the chip.
279.99 + tax 304.49. and usually this chips are only take a minute or two to know it's max. when you run ss/cass/ln2/dice or anything below zero.