Madshrimps posted a review on the Corsair Hydro Series H80i and H100i Liquid CPU Coolers

For those that are new to CORSAIRs Hydro series it all started way back in 2009. A cooperation with Asetek gave birth to the Hydro50 utilising a single fan. And in a later stage the more performant dual fan equipped Hydro70 unit. Competition was fierce as other brands introduced similar look-alikes.

CORSAIR bundled forces with CoolIT and started to develop it's own lineup, leading us to the Hydro60 cooler. The latter was the first of Corsair's range being able to be monitored/steered by the LINK Software. The previous Hydros were very basic and needed voltage adaptors to regulate the fan speed. Now with LINK, the possibilities are endless: being able to adjust fan speeds, monitoring temperatures of all sorts of devices via optional control boxes, even controlling LEDs was possible. Sadly the LINK software got delayed time after time, as CORSAIR didn't want to release a half finished product.

With increasing speeds and cores on modern processors the demand for even better cooling was a logical step to design the Hydro80. Sporting, similar as the Hydro70, a beefier radiator and a dual push and pull fan setup. All these all in one liquid cooling solution 120mm coolers performed pretty good, but the generated FAN noise, to warrant this, was a negative side effect. Only one way to warrant better cooling with a lower noise ratio and that was via increasing the cooling surface. The Hydro100 was CORSAIRs first 240mm radiator and led to even better cooling performance, yet the noise level reached was at a far more acceptable level.

  Corsair Hydro Series H80i and H100i Liquid CPU Coolers Review