HIS Radeon HD 7770 iCooler 1 GB @ techPowerUp
 

The HIS Radeon HD 7770 iCooler is a close to reference implementation of the HD 7770. Coming at reference design price and clocks, its biggest innovation is its cooler, which is exceedingly quiet. It is actually the quietest HD 7770 we tested so far.

http://www.techpowerup.com/reviews/HIS/HD_7770_iCooler/