Preview at WWDC likely in June, followed by September launch.
Apple Announces 27-Inch iMac With Retina 5K Display Starting at $2500
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,” said Philip Schiller, Apple’s senior vice president of Worldwide Marketing. “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 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 with shipping beginning today. The new Retina iMac models can be upgraded with 4.0 GHz quad-core Intel Core i7 processor and AMD Radeon R9 M295X graphics processor. All Retina iMac models come standard with two Thunderbolt 2 ports.
The remainder 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 starting at $1,799.