fugger doesnt have to its been done already.
http://www.dailytech.com/article.aspx?newsid=2657
while not on a 875 or 965, the ati chipset is showing promise.
i dought much performance(GAMING) difference will be seen between the 2mb and 4mb clock per clock. More of a difference would be seen if the 2mb was using a faster FSB speed.
*current*
E6200 2MB 1.60GHz 1066MHz FSB Q4 $179. us
E6300 2MB 1.86GHz 1066MHz FSB Q3 $209. us
E6400 2MB 2.13GHz 1066MHz FSB Q3 $239. us
E6500 2MB 2.40GHz 1066MHz FSB Q4 $269. us
E6600 4MB 2.40GHz 1066MHz FSB Q3 $309. us (65 Watts)
E6700 4MB 2.67GHz 1066MHz FSB Q3 $529. us
E6800 4MB 2.93GHz 1066MHz FSB Q4 $749. us
E6900 4MB 3.20GHz 1066MHz FSB Q4 $969. us