The
E5-2651 v2 is based on
Ivy Bridge architecture while the
E3300 is based on
Core.
Using the multithread performance as a reference, the E5-2651 v2 gets a score of
415 k points while the E3300 gets
24.6 k points.
Summarizing, the
E5-2651 v2 is
16.9 times faster than the
E3300 . To get a proper comparison between both models, take a look to the data shown below.