Intel Core 2 Extreme QX6850 and Massive Price Cuts
 

Today is supposed to mark the introduction of the first 1333MHz FSB quad-core Core 2 Extreme processor, the QX6850 (mouthful anyone?), as well as the official launch of the entire 1333MHz FSB lineup. But this is the second Core 2 Extreme launch that coincides with a ridiculous (in a good way) price drop, so we can't help but shift our focus for this story, at least for starters...In our E6750 preview we demonstrated that the 1333MHz FSB basically offered no tangible performance improvement over previous 1066MHz chips. The faster FSB appears to do a little more with the quad-core QX6850 than we saw on the dual core E6750. The performance advantage is not tremendous, amounting to little more than low single-digit percentage point advantages across the board. Taking into account the ~2.2% increase in clock speed that accompanies the QX6850, an average of around a 2% increase in performance is what we'd attribute to the faster FSB.

http://www.anandtech.com/cpuchipsets...oc.aspx?i=3038