About a month ago we had the opportunity to check out the other CPU cooler in Corsair’s Air Series the Corsair A50. The A70 is designed more for performance than the A70 which was just designed to be better than stock coolers. The A70 has a larger heatsink, additional heatpipe, and an additional fan.
The heatsink on the A70 is that similar to the A50 in height and length, but the width of the A70 is about 48mm wider than the A50. The A70 also features bumps in each of the heatfins, which I would assume increases cooling performance. Adding the two fans, in addition to the extra width of the heatsink, makes the CPU cooler wider than it is tall.
The two fan designed uses the push-pull technique for airflow. The one fan pushes cool air over the heatsink while the fan on the other side pulls the air through the heatsink and out to the case’s rear exhaust fan.
The top fin on the heatsink also has a black finish, which is more likely for style than performance purposes.
The two 120mm 2000 RPM fans are attached to the fan housing by rubber fixings on each of the four corners. These rubber fixings help reduce noise, vibration, and are much easier to install. The ease of installation of the fans requires only a push of the housing and it snaps onto the heatsink. Other coolers require flimsy wire fixings and are difficult to attach, but the A70 uses one of the best fan attachment systems I’ve seen to date (the A50 also uses the same design).
The fan housing also has its own rubber pads to help reduce noise/vibration between the heatsink and fan housing.
Four 8mm copper heatpipes, shaped in a U-design, run through the heatsink and meet at the base of the heatsink where they are used for Direct Contact to the CPU.
The base itself is rather small and made of aluminum. It’s big enough to hold the heatpipes and attach the retention plate.
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