Apple has set up a nice visual trick on the official page for the new iMac, so I suggest you to check it out for yourself. The base iMac with a Retina 5K display will be available with a 3.5 GHz quad-core Intel i5 processor, AMD Radeon R9 M290X graphics processor, 8GB of RAM, and a 1TB Fusion Drive starting at $2,499. And all these new features get stuffed inside the same 5mm-thin profile. If that doesn’t seem enough, you can upgrade it to 4.0 GHz quad-core Intel Core i7 processor and AMD Radeon R9 M295X graphics processor, for a price, of course. Philip Schiller, Apple’s senior vice president of Worldwide Marketing, said the following: “Thirty years after the first Mac changed the world, the new iMac with Retina 5K display running OS X Yosemite is the most insanely great Mac we have ever made. With a breathtaking 14.7 million pixel display, faster CPU and graphics, Fusion Drive, and Thunderbolt 2, it’s the most beautiful and powerful iMac ever.” The new iMac with Retina 5K display also includes two Thunderbolt 2 ports that deliver up to 20Gbps each, which is twice the bandwidth of the previous generation. The rest of of the iMac lineup has not been updated, with the 21-inch model still starting at $1,099 and the 27-inch iMac without a Retina 5K Display available at $1,799.