The Enermax is a bit better than the Hyper 212 when it comes to handling overclocks as seen in the benchmark.
An alternative to the DH-14 that actually performs better with a bit of a lesser price is the Phanteks PH-TC14PE.
http://www.newegg.com/Product/Product.aspx?Item=N82E16835709001
Read this as well:
http://www.kitguru.net/components/henry-butt/phanteks-ph-tc14pe-vs-noctua-nh-d14-cpu-cooler-review/5/
Edit: What is your computer case? These are some monstrous looking CPU coolers that need quite a bit of space.