On June 5, 2017, during Worldwide Developers Conference, Apple refreshed its iMac lineup, introducing improved displays, new Kaby Lake chips, Thunderbolt 3 support, and storage options for its 4K 21.5-inch and 5K 27-inch desktop machines.. iMac Pro is focused on pro users, with high-powered Xeon-W processors, up to 128GB RAM, and up to 4TB of solid state storage. 4K and 5K iMacs are equipped with what Apple says is the best Mac display ever, with 500 nits of brightness, and 10-bit dithering for reproducing up to billion colors.. Inside, there are Intel Kaby Lake processors that introduce much better performance, along with VR ready AMD Radeon Pro graphics and 10-bit HEFC hardware-based decoding for improved performance. For the time, 4K 21.5-inch iMac includes discrete graphics card... All 27-inch models and the higher-end 21.5-inch model ship with Fusion Drives and there's option to upgrade them with new SSDs that are up to 50 percent faster than SSDs for iMacs. Both iMac and iMac feature capacity. The high-end 21.5-inch iMac can be configured with up to 32GB RAM, while the mid-tier and high-end 27-inch models can be configured with up to 64GB RAM.. iMac models are equipped with two USB-C Thunderbolt 3 ports, 4 USB-A ports, jack, SD card slot, and Gigabit ethernet port. Pricing on iMac starts at $1,099 for 2K model, while pricing on iMac with 4K display starts at $1,299, low price.
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