The
E5-2651 v2 is based on
Ivy Bridge architecture while the
Q6700 is based on
Core.
Using the multithread performance as a reference, the E5-2651 v2 gets a score of
415 k points while the Q6700 gets
19.8 k points.
Summarizing, the
E5-2651 v2 is
21 times faster than the
Q6700. To get a proper comparison between both models, take a look to the data shown below.