The
i7-9700K is based on
Coffee Lake architecture while the
506E8 is based on
Kaby Lake.
Using the multithread performance as a reference, the i7-9700K gets a score of
460 k points while the 506E8 gets
211.6 k points.
Summarizing, the
i7-9700K is
2.2 times faster than the
506E8. To get a proper comparison between both models, take a look to the data shown below.