21-inch iMac: 2.3GHz dual-core Intel Core i5
A desktop experience that draws you in and keeps you there. This is the idea behind today's iMac. Faster and more powerful than ever, iMac is now equipped with seventh-generation Intel Core i5 and i7 processors and the latest high-performance graphics. iMac features powerful new Radeon Pro 500 series graphics that make a spectacle of everything you see. The 27-inch iMac with Retina 5K display is loaded with up to 8GB of dedicated VRAM.