Intel Core i7-800 Processor Series
 

The two Core i7 series - for the sockets LGA1156 and LGA1366 - offer similar pricing and specifications, with the exception of Gulftown-based hexacore products which only exist in one series and stand out in both aspects. So it's very interesting to find out whether such "twofold existence" is actually justified.

http://ixbtlabs.com/articles3/cpu/intel-ci7-800-p1.html