Zalman CNPS10X Optima, Cooler, 12 cm, 1000 RPM, 1700 RPM, Aluminium, Copper, Grey Zalman CNPS10X Optima. Type: Cooler, Fan diameter: 12 cm, Rotational speed (min): 1000 RPM, Rotational speed (max): 1700 RPM. Voltage: 12 V. Width: 85 mm, Depth: 132 mm, Height: 152 mm. Product colour: Aluminium, Copper, Grey https://uk.hardware.info/reviews/6859/cpu-cooler-review-22-new-models-tested It's already been a year since our last round-up of CPU coolers. Therefore it's high time for a new test that includes newer models. In this review we'll be taking a look at 22 new CPU coolers priced between 20 and 50 pounds and we'll be comparing them... If you want to overclock your processor, you'll pretty much be forced to buy a relatively expensive cooler. The best CPU air cooler at the moment is the Noctua NH-U14S , as it cools more efficiently than any other model. The price reflects its performan...