I just bought this EcoIntelligence card myself because my xfx 9800 gt memory went bad. I thought well hey how is it this card uses less watts from the power supply. So I compared my old 9800 gt with the new EcoIntelligence 9800 gt to learn that. My old 9800 gt had a gpu speed of 600 mhz. My new 9800 gt EcoIntelligence is 550 mhz.