Which skylake overclock motherboard

[Georgyy]

I'd like to overclock a 6600k to about 4.5GHz if I can.
Which of those motherboards is better :
Asrock Z170 Pro4
Asus Z170-P
Gigabyte Z170-D3H
Asrock Fatal1ty Z170 Gaming K4
Main purpose is gaming.

 

[okcnaline]

Fatal1ty Z170 K4 if you want cheap. The others... Not so much. Fatal1ty K4 competes with much higher priced boards at OC.