Is Overclocking worth it? Is it noticeable?

Solution
depends on your hardware, the amount you overclock it, and in what game
since mild overclock (few 100Mhz), will give almost no noticeable performance increase in most games
where as upgrading to a bigger GPU would give a huge performance increase

if you do a solid overclock 600+Mhz you will start to notice the performance increase, and in some games it will be more noticeable than others, depends on how CPU heavy the game is
but again upgrading to a stronger GPU will almost likely yield the bigger performance increase you will notice
now if you already have the "top" GPU, and thus cant upgrade, and your only performance increase would be overclocking, it depends on what game, and how much you overclock
100Mhz overclock, you wont notice...
depends on your hardware, the amount you overclock it, and in what game
since mild overclock (few 100Mhz), will give almost no noticeable performance increase in most games
where as upgrading to a bigger GPU would give a huge performance increase

if you do a solid overclock 600+Mhz you will start to notice the performance increase, and in some games it will be more noticeable than others, depends on how CPU heavy the game is
but again upgrading to a stronger GPU will almost likely yield the bigger performance increase you will notice
now if you already have the "top" GPU, and thus cant upgrade, and your only performance increase would be overclocking, it depends on what game, and how much you overclock
100Mhz overclock, you wont notice anything
800+Mhz (heavy overclock) you will notice a performance increase but it wont be "huge" unless the game is very CPU demanding

CPU overclocking is usually always the "smaller" performance increase vs GPU, but a CPU will also usually overclock to a higher degree than the GPU, but once you reach the "heavy overclock" range, diminished returns, you need some serious cooling solutions, and then the "is it worth it" price-performance increase comes to mind
 
Solution
the i7 6700k will overclock to 4.6Ghz easy, and seems to hit overclocking diminished returns at the 4.7-4.8GHz marks in which it will depend on you "chip luck" how good a chip you get and how easy/much it will overclock to/beyond that

from a gaming stand point you wont notice much difference in the 3 steps of 4.6-4.7-4.8GHz so dont worry about that, and going from teh stock 4Ghz to 4.6GHz you will se some but not "huge" performance increase
only if you plan on heavy liquid cooling above that point will you start to see that,
but then we enter the risk territory, where its not even certain the chip you end up getting will ever reach higher, luck of the draw
http://www.overclock.net/t/1570313/skylake-overclocking-guide-with-statistics

i do remember something about someone being lucky enough to get such a "super" chip they managed to get it to 5.2GHz or such on Air cooling lol, but you really shouldnt expect that 😉
 
For me it worth it, i have a fx 6300 (3.5mhz stock) and i overclock to 4.3 very stable and now i'm playing games very good, before i couldn't keep 60fps on medium settings, now i get 60fps without any drop with high setting
 
It is worthy when you overclock it to certain limit. Beyond that it doesnt matter how much clockspeed you achieve in terms of gaming perspective. say that there wont be an any fps difference when you overclock your i7 6700k processor above 4.5mhz .Also if you play at 2k and 4k there will be no improvement in FPS,but your rendering and compute performance may vary depending on the application you running.
 


Hahathank you, i will overclock!