Is any desktop Radeon use this PowerPlay? Almost like AMD CPU Cool'n'Quite?

Mobility™ Radeon® X700
Extended Battery Life with PowerPlay™ Technology
Mobility™ Radeon® X700 offers PowerPlay technology for optimal power management and extended battery life, combining high performance with low power consumption, letting you work and play longer.

http://www.ati.com/products/MobilityRadeonx700/