I just came across this coin
https://bitcointalk.org/index.php?topic=489172.0, see how it is described. One of the most important features for it is:With proper configuration keccak can be mined at 30% better power efficiency than a maxed out scrypt setup!! and run in excess of 6°c Cooler! This is good for the environment, and easier on hardware which means less maintenance over time for your valuable gpus!
With darkcoin it is almost 50% better power efficiency, and at least 10c cooler cards. But people don't know that. I think specification of the DarkCoin should be updated on the first page!