nVnews has posted a review on the Arctic Cooler Accelero X1

I was expecting the Accelero to be as silent as the Zalman it was replacing. It was. I was expecting the Accelero to perform at least as well as the Zalman it was replacing. It did. The edge that the Accelero has over the Zalman is that the Accelero works in SLI mode.

Arctic Cooler Accelero X1 Review