On Tuesday, Apple took the wraps off of a set of new products, led by a 21.5-inch iMac with Retina 4K display, followed by a new set of input devices that carry the Magic name.
21.5-inch iMac with Retina 4K display
The introduction of the Retina display into the 21.5-inch iMac fills out the Retina iMac line that formerly featured only a pair of 27-inch models with Retina 5K displays.
The Retina 4K display sports a resolution of 4096 by 2304 resolution—that’s over 9.4 million pixels on the screen, which is 4.5 times the number of pixels that appear on the standard 21.5-inch iMac and its 2 million pixels. The Retina 4K display also features a P3-based color gamut that Apple says provides a 25 percent larger color space, leading to better image detail and color accuracy.
The 21.5-inch Retina 4K iMac uses an Intel Broadwell processor, not a Skylake processor that Intel introduced in August. Apple also uses the integrated Intel Iris Pro graphics subsystem in the standard configuration of the 21.5-inch Retina 4K iMac; discrete graphics processors are not used. (Integrated graphics uses a portion of the computer’s memory; discrete graphics have its own dedicated memory, resulting in increased performance.) A discrete AMD graphics processor is available at and extra cost as a customizable option.
The base configuration for the 21.5-inch Retina 4K iMac come with 5400-rpm hard drives. Fusion Drives (which combine the mass storage space of a hard drive with flash storage for speed) are available to buy as an upgrade option at the time of purchase. Customers also have the option to replace the hard drive with complete flash storage for an extra fee.
Apple offers three standard configurations of the iMac. The one Retina 4K iMac standard configuration is priced at $1499. Read our in-depth review of the $1499 21.5-inch Retina 4K iMac. Apple also offers two 21.5-inch iMacs priced at $1099 and $1299 with standard displays that have a resolution of 1920-by-1080 .
27-inch iMac with Retina 5K display
Intel’s new Skylake processor have made their way into Apple’s 27-inch Retina 5K iMac, replacing the Haswell processors in the two previous 27-inch Retina 5K iMacs. The new 27-inch models also have discrete AMD graphics processors.
The Retina 5K display has a resolution of 5120-by-2880, which comes out to about 14.7 million pixels on the screen. It also has a P3-based color gamut.
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