i5 6600 for streaming?


To get 40% more performance out of an i5-6600k, you also need a high-end overclocking motherboard, a high-end cooling solution, some higher performance RAM, likely a better quality PSU and some luck-of-the-draw.

The build cost difference will be 30-40% higher for the CPU+MoBo+RAM+HSF combo, in large part due to the need for a high-end aftermarket cooler.
 


That's why, in my opinion, it's more worth it to just spend the money on a better CPU, like an I7 or Xeon, rather than spending it on all that stuff just to overclock the I5.
 


40% is a very lofty goal in my opinion.

the XEON E3 or i7 (both with hyper threading) would be better choices. I see 8 threads getting used when I am recording while gaming.
 
skylake 14nm runs cool.
During testing, a simple downdraft noctua cooler did the job, @4.7 obviating the need for a large noctua NH-D14 I was prepared to install.
A simple tower type cooler with a 120 or 140mm fan is all you need.
A cm hyper212 @30 will do the job.
I used a maximus VIII gene, a $210 motherboard.
Yes, it is a premium board, but my perception is that more modest asus boards will do equally good.
As to luck of the draw, here are some stats from silicon lottery:
What percent can get an overclock at a sane 1.40v
I5-6600K
4.9 3%
4.8 23%
4.7 44%
4.6 85%
The 40% number assumes 4.6.

On ram, 16gb of ddr3 1600 ram costs $60 or so.
16gb of ddr4 2400 ram costs $70.
 


A very good question for which I have not found an authoritative answer.
That is the max vcore at which silicon lottery bins their chips.

On haswell, the supposed number was 1.30v.

skylake has a different voltage mechanism, so it does not surprise me that things will work differently.

I like to use adaptive voltage which reduces the voltage unless the cpu is under full load.
 


Actually i'm not really interested in overclocking, mostly because the configuration i'm building is my first, and i'm far from been an expert xD

So if one day i'll decide to stream, i'll have a good result?