The
3500X is based on
Zen 2 architecture while the
906EC is based on
Coffee Lake.
Using the multithread performance as a reference, the 3500X gets a score of
373.6 k points while the 906EC gets
494.2 k points.
Summarizing, the
906EC is
1.3 times faster than the
3500X. To get a proper comparison between both models, take a look to the data shown below.