An air cooler is no less consistent than an AIO cooler. Just because you said it in a post doesn't make it fact.
You also don't need to run all aircoolers at max fan speed to achieve great results.
Even the entry level $30 air cooler you compared to the 240mm radiator can achieve great results... it's friggen $30. You said it yourself, you achieved a 1+Ghz OC on your i5 with a $30 air cooler. That's "great".
The h110 performs literally within 1 degree and within 1 DB of the noctua DH14.....
And while we're nit picking random components to prove irrelevant points, here's the noctua DH14 air cooler that performs BETTER than the h100i AIO while producing less noise!
Noctua DH14:
https://www.newegg.com/Product/Produ...-024-_-Product
Silent 40db at load
Cooling OC i7 3770k to 72C
h100i:
https://www.newegg.com/Product/Produ...-103-_-Product
disgusting 45+ db at load
Cooling OC i7 3770k to 76C
source:
http://www.guru3d.com/articles_pages...review,13.html