Originally released in 1998 with its most recent redesign in 2012, the iMac ($1,099 and up from the Apple Store) started life as Apple’s fun all-in-one computer, evolving into a more serious “right for practically everyone” option over time. Currently available in 21.5″ (1920×1080-pixel) and 27″ (2560×1440-pixel) versions, the iMac is effectively a non-portable MacBook Air or MacBook Pro with a larger screen. The lowest-end model ships with a slow Air-like 1.4GHz Core i5 processor, quickly stepping up to 2.7GHz and 3.5GHz i5 and i7 chips as the price climbs; hard drives range from a slow 500GB disk to a fast 1TB SSD, with better graphics processors at higher prices. You get most of the Mac Pro’s performance, ports, and features, plus an integrated screen, all at a lower price.
The iMac tapers to only 5mm thin at its edges, a design change that required the loss of optical drives and the movement of card readers to the computers’ rears, near their ports. It’s also impossible to upgrade the 21.5″ model’s RAM after purchase, so you’ll need to buy the machine customized with the amount you want. But those are the only compromises, as the thin iMacs feature top-grade internal specs like fast processors, USB 3 ports, and optional SSD or Fusion Drives. A Fusion Drive combines an SSD with a standard Hard Drive in order to provide the benefits of flash storage, while still providing the 1TB or 3TB of storage space that many customers would expect from the iMac.
Apple last updated the regular iMac in September 2013, but in mid-2014 introduced a minor update to the 21.5-inch iMac offering MacBook Air-quality chips at a more affordable price point. If you’re looking to save a comparable amount without compromising on performance, Apple sells refurbished iMacs at a discount, and they’re indistinguishable from new machines.
In the fall of 2014, Apple introduced a top-of-the-line 27″ iMac that looks identical from the outside, except for the addition of a “Retina 5K display.” With a $2,499 price tag from the Apple Store, the iMac with Retina 5K display includes a 3.5GHz Core i5 processor, and sells for a $500 premium over a comparably-equipped standard 27″ iMac. In addition to the sharper display, the 5K iMac can be customized with a faster 4.0GHz Core i7 processor, a 4GB graphics card, and up to 32GB of RAM. Like with the Retina MacBook Pros, it’s likely that the Retina iMac prices will come down over the course of the next few years. We expect to see a 21.5-inch Retina model in the future.
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