If the cosair is roughly the same price, go for that. It will be marginally better. I don't know what the new fans are like on the cosair (the old ones were shit) but you may need to invest in noctua high static pressure fans to get the most out of it. I have the nzxt 240mm. The fans were garbage, so you will definitely need to get new fans. The pre-applied thermal paste on the nzxt is also shit, and you need to change this. My cpu temps dropped by 9 degrees by simply changing the thermal paste. apart from the RGB stuff the nzxts are overrated.