The
906ED 2.1GHz is based on
Comet Lake architecture while the
2600 is based on
Zen+.
Using the multithread performance as a reference, the 906ED 2.1GHz gets a score of
657.2 k points while the 2600 gets
291.5 k points.
Summarizing, the
906ED 2.1GHz is
2.3 times faster than the
2600. To get a proper comparison between both models, take a look to the data shown below.