this product be perfect for I - upgrade to a 2005 pc - work perfectly with Windows xp and ubuntu\/linux 10.04 and upward . it offload the CPU and enable the system to have more capacity . I be unable to say how much gain I get but I can definitely `` see '' it . I do not play game where the 3d be use . I only view you tube stuff and video clip from news report , use wmv and html5 etc type of video . with Windows I have to download the driver or load the CD for the driver . for Linux the system automatically load the require driver when boot . how simple be that !!!!!