We review the MSI Radeon HD 7770 Power Edition. MSI recently released an updated Radeon HD 7770 1GHz edition with their own 1.1 GHz custom model. They use their own custom 4-layer PCB and equipped it with a dual cooling solution. I say dual here as you get an extra fan that you can pop onto the card for extra cooling. MSI also opened up the voltages for Aux, GPU and memory making the card very tweakable.