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Apple introduced the 27-inch iMac with Retina 5K Display (Late 2014) on Oct. 16, 2014 as the first Mac desktop with a built-in Retina-quality display. With a resolution of 5120 x 2880, iMac with Retina 5K display offers four times more pixels than Apple's standard 27-inch iMac (Late 2013) and 67 percent more pixels than the 21.5-inch iMac with 4K Retina Display (Late 2015). The iMac 5K uses a precisely manufactured oxide TFT-based panel to deliver vivid display brightness from corner to corner and is also more powerful on the inside. It comes with a 3.5 GHz quad-core Intel Core i5 processor with Turbo Boost speeds up to 3.9 GHz, and for the first time can be configured with a 4 GHz quad-core Intel Core i7 processor with Turbo Boost speeds up to 4.4 GHz. Every new iMac with Retina 5K display also comes with AMD Radeon R9 M290X graphics and can be configured with AMD Radeon R9 M295X graphics, delivering up to 3.5 teraflops of computing power, the most powerful graphics ever offered on an iMac. iMac with Retina 5K display comes standard with 8GB of memory and a 1TB Fusion Drive for the first time, but it can also be configured with up to 32GB of memory, a 3TB Fusion Drive, or up to 1TB of PCIe-based flash storage. In addition, iMac with Retina 5K display includes two Thunderbolt 2 ports that deliver up to 20Gbps each, twice the bandwidth of the previous generation. Ships with an Apple Magic mouse and keyboard.