CES 2013 - Here's a picture of the old ETS-T40 cooler by Enermax:
Here's a picture of the new ETS-T40 cooler:
Now, those colors aren't just for looks. According to Enermax, the colors are the "thermal conductive coating," which is supposed to increase the cooling performance of the heatsink. The heatsink supports from socket 775 and AM2 up to the latest sockets from both Intel and AMD.