Currently Being ModeratedMay 9, 2013 7:10 PM (in response to macreserve)
From the MacTracker database:
I5 quad 2012 is the 9197 result. The 2.8ghz i7 quad is the 8325.
Mactracker is free at http://mactracker.ca
Clicking a processor info line in Mactracker produces the charts I posted, based on GeekBench result reported by a large number of contributors.