The
506E8 is based on
Kaby Lake architecture while the
1700X is based on
Zen.
Using the multithread performance as a reference, the 506E8 gets a score of
211.6 k points while the 1700X gets
372.7 k points.
Summarizing, the
1700X is
1.8 times faster than the
506E8. To get a proper comparison between both models, take a look to the data shown below.