Gigabyte Radeon HD 7970 3GB OC Review @ Hardware Canucks
 

The HD 7970 is currently one of the most popular cards around and Gigabyte has once again done their part to design a custom card that improves upon the reference design in nearly every way possible. While their OC edition may not sport ultra high clock speeds, it more than makes up for this shortcoming by incorporating the WindForce 3X heatsink which allows for significantly cooler temperatures and near silent operation.

http://www.hardwarecanucks.com/forum...oc-review.html