The
5900X is based on
Zen 3 architecture while the
906EC is based on
Coffee Lake.
Using the multithread performance as a reference, the 5900X gets a score of
840.1 k points while the 906EC gets
494.2 k points.
Summarizing, the
5900X is
1.7 times faster than the
906EC. To get a proper comparison between both models, take a look to the data shown below.