Refined AMD PowerTune Technology & AMD ZeroCore Power Technology Designed with the most advanced power management features, the AMD Radeon HD 7790 is equipped with the intelligence to convert unused power headroom into extra performance by dynamically controlling clock speeds, allowing gamers advanced performance inside of the power envelope they specify. AMD ZeroCore Power technology found in the AMD Radeon HD 7790 enables lower idle power than any other currently available graphics card. With support for AMD CrossFire technology, AMD ZeroCore Power eliminates wasted power, as well as additional heat and noise from extra cards when you are not using them.