The
T4500 is based on
Core architecture while the
E5-2651 v2 is based on
Ivy Bridge.
Using the multithread performance as a reference, the T4500 gets a score of
23 k points while the E5-2651 v2 gets
415 k points.
Summarizing, the
E5-2651 v2 is
18 times faster than the
T4500. To get a proper comparison between both models, take a look to the data shown below.