http://www.octools.com/index.cgi?cal...E/extreme.html
Quote: "Unlike most 9600Pro who uses 3.3ns or even 2.8ns memory chips, this unique 9600Pro version uses 2.5ns chips. Thus, the EXTREME monicker"
"Note that the EXTREME's default memory clock is already 22% faster than the stock 9600Pro"
Sounds like a winner if the premium isnt too high.