I would like to know which is more efficient the dark knight ii nighthawk? Or the thor's hammer. Most likely will be using two 120mm fan for push/pull and will be using them for 4770k on maximus vi hero. Appreciate your opinions!
I recommend to get the dark knight ii nighthawk, I had this one, and I oc my i5 2500K to 3.9Ghz, during the games cpu temp< 45C all the time.
Here is the review. http://www.overclockersclub.com/reviews/xigmatek_sd1283_sd963/4.htm
http://www.frostytech.com/articleview.cfm?articleid=2693&page=5
But for your 4770K if you may get high temp, you can see in the review. If you want to keep the temp lower, get the water cooler.