I Think My Graphics Card Changed I opened System Information today only to find that my graphics card name has changed from Intel 4000 (or something like that) to AMD Radion: 

I don't think I'm going crazy.

EDIT: I was right! Here it is showing Intel 3000: http://icap.me/i/yEdDGcjR1B.png
Most recent 15" MacBook Pros have dual graphics cards — one integrated into the CPU (the Intel 3000), and one discrete card (the Radeon). It switches dynamically based on what programs are running and how they use the GPU.

Some more info from Apple:


MacBook Pro: How to determine which graphics card is in use
MacBook Pro: How to set graphics performance
MacBook Pro: About automatic graphics switching and OpenGL applications