So, what is Catalyst Control Center, and where can I download it?
Catalyst Control Center is AMD's driver suite for their graphics cards. From what I know, AMD does not offer any drivers other than Catalyst, meaning you cannot get just the straight drivers, you can only get Catalyst. However, I think it's worth it, as much as it might be a bit bigger, for the capabilities it has.
Catalyst can be downloaded from AMD's website at this link:
You can use the 4 drop down menus there to specify your system type, product family, product model, and OS. Then, you can click "Display Results", and it will take you to a list of drivers/downloads that fit your setup. AMD provides drivers for:
Windows 7 (32 bit and 64 bit)
Windows 8 (32 bit and 64 bit)
Windows Vista (32 bit and 64 bit)
Windows XP (32 bit and 64 bit)
Linux (32 bit and 64 bit)
According to AMD's website, Mac drivers are provided with the Mac OS X installation.
For those who don't know, graphics drivers allow you to use multiple monitors, run at higher resolutions, and, basically, get the full potential of your graphics device.
That should cover that.
Now, what can you do with Catalyst Control Center?
Catalyst allows you to do many things. I use it to run multiple screens, which works very well, for one.
Some other things you can use it for include:
Run and configure multiple displays through AMD Eyefinity
Configure options for both LCD and VGA displays
Change game anti-aliasing and anisotropic filtering
Overclock your GPU using AMD OverDrive (keep in mind; AMD will not provide support for any issues you have resulting from use of AMD OverDrive)
Set up audio output through connected displays that have speakers in them
So, that should cover the main aspects of Catalyst! Let me know if you need any other help, I can try and help you, and let me know if there's anything you think I should add to this post!