If power consumption is a concern, you can manually tweak your power consumption in AMD's driver. I like to stay under 200 watts for GPU, so I undervolted my 6800. Since most chips nowadays are pushed well past their efficiency curve, it took just a minor undervolt and a minor underclock to cut my power consumption by half. My 6800 currently pushes more frames at 1440p with lower wattage than my previous 6600 at 1080p. Although, you do have to have to have the time to sit there and try different frequency and voltage values.