Alijericho :
My needs are gaming only. Im looking for 20-25% increase performance. Will an intel 6600K with mobo MSI z170a gaming pro help achive that?
Keeping in mind direct x12 and vulcan engines and new games greatly favor more cpu cores. And 8350 has 8 !!
My setup--
8350 black edition
Rx480 refrence 8gb
Corsair psu 850
8 gb Kingston
There is a very large improvement going to a 6600K from the 8350. According to benchmarks, one must not put a large emphasis on more cores. For example a quad core 7700K beats many CPUs with more cores, even from the intel side of the fence due to its strong single core performance across enough cores that satisfies most games, no matter if dx12 or 11.
A 6600K is a very significant improvement and will definitely reduce stutter in many games. Depending on what game you play you may or may not achieve your 25% target improvement. In something like PUBG it would make a big difference.
http://cpu.userbenchmark.com/Compare/Intel-Core-i5-6600K-vs-AMD-FX-8350/3503vs1489
I would also look at the 8th gen intel CPUs such as the new i3 8350K which seems to be a better performer, and much newer than the 6600k:
https://www.youtube.com/watch?v=fujMhJUZbUQ
I would get a i3 8350K if I were you and sell the 8350 Black edition