14. Powerplay - Now It Works!, Continued

To determine how much these three settings actually influence the performance and consequently the average frame rate, we ran the Halo timedemo at various combinations of resolutions and Powerplay settings.

As this chart shows, the average frame rate drops by as much as 75% when Powerplay is activated.

To ascertain the effects of Powerplay on the battery life, we proceeded as follows: To simulate a continuous "3D graphics load" we ran the four game test scenes from 3DMark 2001SE in a continuous loop until the battery gave out. This measurement was repeated several times for each of the Powerplay settings.