post #121 of 121
http://cdn4.wccftech.com/wp-content/uploads/2013/10/AMD-Radeon-R9-290X-Cooler.jpg

http://images.anandtech.com/doci/6760/GeForceGTX_Titan_3Qtr2a.jpg
Quote:
Originally Posted by HurleyBird;35717617 
The heatsink itself might be marginally larger on the titan cooler, but AMD's reference fan looks very shallow compared to the one on Titan. That has to be the biggest difference. Titan's fan is putting out more CFM, and probably has a better acoustic profile at the same RPM.
http://forums.anandtech.com/showthread.php?t=2352532&page=5

The NV fan looks almost twice the height to me plus the AMD gpu has a smaller surface area for contact with the heatsink so that is 3 reasons right there .