MacBook Pro BootCamp Graphics

我果部機係2011 early 15寸MacBook Pro
岩岩裝左BootCamp Windows 8, 發現好食電, 正常d win 8 notebook都唔會咁食...
之後一check, 咦? 凈系認到6750m?
請問個位師兄有無方法等佢認到HD3000 switch翻過去? Windows 8有時外出都會用... 2-3粒鐘電真系玩死人...