The
5300U is based on
Zen 2 architecture while the
506E8 3GHz is based on
Kaby Lake.
Using the multithread performance as a reference, the 5300U gets a score of
198.4 k points while the 506E8 3GHz gets
210.9 k points.
Summarizing, the
506E8 3GHz is
1.1 times faster than the
5300U. To get a proper comparison between both models, take a look to the data shown below.