The
506E8 3GHz is based on
Kaby Lake architecture while the
5900X is based on
Zen 3.
Using the multithread performance as a reference, the 506E8 3GHz gets a score of
210.9 k points while the 5900X gets
814.7 k points.
Summarizing, the
5900X is
3.9 times faster than the
506E8 3GHz. To get a proper comparison between both models, take a look to the data shown below.