The
506E8 is based on
Kaby Lake architecture while the
i7-8665U is based on
Whiskey Lake.
Using the multithread performance as a reference, the 506E8 gets a score of
211.6 k points while the i7-8665U gets
129.1 k points.
Summarizing, the
506E8 is
1.6 times faster than the
i7-8665U. To get a proper comparison between both models, take a look to the data shown below.