We start our temperature measurements with our Intel Core i7-920 processor running at stock voltage. As you can see in the chart below, the Armageddon does a great job and keeping the CPU under control when running at stock speed, keeping the temperature down to 45 degrees Celsius. That's 13 degrees C lower than the performance of Intel's stock CPU cooler. Notice that the Armageddon gave almost the same performance with the Prolimatech Megahalens with two fans installed. In addition, many other heatsinks are sharing the same place in the ranking below:

Let's pick up the voltage and overclock this CPU and see what happens below. Now our Intel Core-i7 920 operates at 3.60GHz and produces much more heat.

The Armageddon still performs pretty well cooling down the CPU at just 61 degrees C. The same performance had been reported with the Tuniq Tower 120 Extreme, ProlimaTech Megahalems (single fan) and Titan Fernir heatsinks. Have in mind that this performance comes from a smaller heatsink, although the dual push-pull fan configuration seems to make the difference here.

Despite the dual 140mm fan configuration, the Armageddon remained acceptably quiet even when the fans were spinning at full RPM. The produced noise was not any higher than the 45dB (30cm distance) at full speed:

The Armageddon is a great performer but it is also one of the highest-priced heatsinks users can buy.. It's price is comparable to what you need to spend for a Nexus VCT-9000 or even a Noctua NH-D14 heatsink. However, the Prolimatech does not offer the essential 140mm fans with the retail package, so the extra cost required for the dual fans make the Armageddon less competitive: