XtremeComputing posted a review on the Thermaltake DuOrb VGA Cooler

With ambient temperature somewhere around 26c on both days that we took results from, you can clearly see the Thermaltake clearly exceeds the stock cooler, at first I was worried when I saw the idle temps were almost identical, but under load well a whole 19c difference on the 8800GTX and in my eyes that makes this pretty special.

Thermaltake DuOrb VGA Cooler Review