mappy881 :
I just ordered an i7 6700k@4ghZ, and for a cooler I have a coolermaster tx3 will this be enough to cool it, I will be gaming arma 3, gta 5, il2 sturmovik, world of tank etc thanks!
Provided you're getting the k version of the 6700k, you want to overclock that thing, as you can easily achieve 4.5ghz with not much voltage increase. At full load, that cooler will make the GPU hit the 80c+ mark, but it is unlikely that you will ever hit full load on games.
You should get a solid 75-80c gaming, but if you want cooler temps than that ( I would, as 80c is the threshold for uncomfortable temps for me), the Cryorig H7 is a great place to start, and the Deepcool Gamerstorm Assassin II is a better higher end CPU cooler that performs on similar levels to the
Noctua DH-15 without obscuring RAM slots or being as pricy.