The extremes have slightly higher clock speeds, which can be achieved through a simple overclock with non-extreme processors. Totally not worth the 200%+ increase in price they have, if you were thinking of purchasing one.
if your looking for a better boost in performance, dont think about the core 2 extremes, look at the i7 lineup. the cheaper 920 will outdo any chip in the core 2 lineup, including the extremes.
if your looking for a better boost in performance, dont think about the core 2 extremes, look at the i7 lineup. the cheaper 920 will outdo any chip in the core 2 lineup, including the extremes.
+1 to this, much better performance. Though RAM and mobo are quite expensive. Still, a whole i7 build can cost less than the £1,000+ top quad extreme.