I have a XFX GeForce 8400 GS with 512 MB Ram . The Driver Version is 126.96.36.19960 NVidia ForceWare 181.60 . (The Bios String is displayed by Everest as Version 62.98.29.00.01 ) GPU CodeName - G98GS . The DirectX HardWare Support is displayed as DirectX V10 . Question 1) Is this Card called a GPU ? Question 2) This card is installed in a AMD Athalon 64 X2 5200+ CPU based Machine with Asus M2N68-AM SE2 MotherBoard . The BIOS in the system is AMIBIOS . The NVidia Raid Function under "IDE Configuration" is disabled in the BIOS . I would like to ask what would be the changes if this option is 'enabled' ? Also the PnP Aware OS setting is Disabled . InCase these settings have to be enabled , after enabling them , will the changes only be affected if Windows is re-installed ? Question 3) Give me some Good BenchMark (Application) where I can really see the difference that this card brings to the Graphical Abilities of my machine .