The Current State Of Radeon Power Management
A look at the performance impact of the different power states... Right in line with what is expected for the Radeon HD 5770 in relation to the frequency differences for the lowest level.
The Catalyst driver continued to enjoy using the Core i5 2500K processor.
The highest power state for the Radeon HD 5770 is barely enough to handle Doom 3 at its lowest settings, so anything in a lower power state will put any id Tech 4 gaming experience in shambles.
With this load, the Radeon HD 5770 controlled by the Catalyst driver began approaching the temperature of the open-source driver.