The
i5-3570K is based on
Ivy Bridge architecture while the
906ED 2.1GHz is based on
Comet Lake.
Using the multithread performance as a reference, the i5-3570K gets a score of
120.2 k points while the 906ED 2.1GHz gets
499.5 k points.
Summarizing, the
906ED 2.1GHz is
4.2 times faster than the
i5-3570K . To get a proper comparison between both models, take a look to the data shown below.