"As a factory overclocked card it is easily faster than the reference card by way of comparison. Cooling performance is another aspect that was measured since this card does use a non-stock cooling solution. Running with the factory clock speeds and letting the driver control the fan speed, the maximum temperature I recorded was 66° C under load with a 39° C idle temperature. The fan reached 43% utilization at this load temperature so you have both cool and quiet."
FULL STORY @ OVERCLOCKERSCLUB (http://www.overclockersclub.com/reviews/sapphire_hd5850_toxic_2gb/)
"The new Thermalright Silver Arrow CPU Heatsink arrived Technic3D. See you in the following Review the High-End Silver Arrow with two 140mm Fans from Thermalright compared with many other Cooler on a Intel Core i7 920. Inclusive the Thermalright TY-140 Fan and more. Better than the Cogage Arrow? "
FULL STORY @ THERMALRIGHT (http://www.technic3d.com/article-1173,1-thermalright-silver-arrow-cpu-kuehler-im-test.htm)