techPowerUp posted a review on the Powercolor HD 5770 PCS+
A quote from the article:
>> Powercolor HD 5770 PCS+ Review
PowerColor has sent us their new Radeon HD 5770 PCS+ which is an overclocked version of the HD 5770, featuring a custom PCB design and thermal solution by PowerColor. Thanks to PowerColor's changes, the card can manage a reduced power consumption, which is even lower than the AMD reference design, resulting in a leading performance per Watt score.
>> Powercolor HD 5770 PCS+ Review