The
5500U is based on
Zen 2 architecture while the
906EC is based on
Coffee Lake.
Using the multithread performance as a reference, the 5500U gets a score of
261.9 k points while the 906EC gets
494.2 k points.
Summarizing, the
906EC is
1.9 times faster than the
5500U. To get a proper comparison between both models, take a look to the data shown below.