The
i5-13600K is based on
Raptor Lake architecture while the
906ED 2.1GHz is based on
Comet Lake.
Using the multithread performance as a reference, the i5-13600K gets a score of
1023.6 k points while the 906ED 2.1GHz gets
657.2 k points.
Summarizing, the
i5-13600K is
1.6 times faster than the
906ED 2.1GHz. To get a proper comparison between both models, take a look to the data shown below.