For our temperature tests we loaded the system for 10 minutes using Prime 95 and recorded the CPU temperature using CPUID HWMonitor. We then restarted the system and left it idling at the desktop for 10 minutes. The temperatures recorded are based on an ambient temperature of 25 degrees C.
As you can see from the results above, all three coolers performed well in these tests. In the overclocked tests they all fell around 5-10 degrees behind the NH-D14 which isn't too shabby for coolers that cost a fraction of the price. Things were much closer in the stock test where the NH-D14 only managed to outperform the Ereboss by the tightest of margins.