Think for a second here, do you experience screen tearing, no? Do you experience 800x600 resolution, no? Actually, the graphics driver for the 7XXX series are already onboard with Mavericks when you type GraphicsEnabler=no. There is no need for the experimental recognition of your card it is already included with the OS. All you need to do is type -f, the ignore kernel cache, command. I have a Amdfx 8150 and a Radeon HD 7970 I use these 2 commands to start up. GraphicsEnabler=no -f No freezing, youtube is working, and sound is working without needing tampering.