The
i5-6600K is based on
Skylake architecture while the
506E8 3GHz is based on
Kaby Lake.
Using the multithread performance as a reference, the i5-6600K gets a score of
199.9 k points while the 506E8 3GHz gets
210.9 k points.
Summarizing, the
506E8 3GHz is
1.1 times faster than the
i5-6600K . To get a proper comparison between both models, take a look to the data shown below.