Advanced AMD Radeon HD graphics

When you need performance for things like playing 3D games, editing HD video or running design software, the discrete AMD Radeon HD graphics in iMac go to work. You see more frames per second and experience better responsiveness. With the AMD Radeon HD 6970M, the top-of-the-line 27-inch iMac offers the best graphics of any all-in-one. But no matter which iMac you choose, you’re guaranteed superior graphics performance. With up to 2GB of dedicated GDDR5 video memory, these processors provide up to 3x faster performance than the previous generation.²