Overall Performance (AMD)
To calculate each cooler’s overall performance, I take into account three factors: the CPU’s temperature, wattage, and frequency, by using the following equation:
(Wattage / Temperature) x Frequency
Each chart shows the cooler under test as 100% and every other product’s performance as relative to it.
The overall performance is high enough, but not so competitive as the noise output and the fans’ speed increase. I expected more from a dual-tower design cooler. At full speed, where the Enermax cooler outputs 35 dBA, its performance difference with the Thermalright Peerless Assassin, which uses 140mm fans, is low. This is not the case, though, at 30 dBA.
Another notable mention is the high performance achieved by the Cooler Master Hyper 612 Apex. This cooler proves to be a pain for other high-end, and significantly more expensive, air coolers, which also have larger dimensions (e.g., the Noctua NH-D15 G2).
Performance Per Price (AMD)
Even a $5-10 difference can create high differences in these charts because most air coolers have prices ranging from $55 to $100. The only exception is the NH-D15 G2, which is currently sold at $150.