Apple iMac 27-inch Retina 5K 4.2GHz i7 64GB DDR4 1TB HDD Radeon Pro 580 Mid 2017

27-inch Retina 5K iMac for creative professionals

The all-in-one desktop integrates a 5120 by 2880 display with a 4.2 GHz Intel Core i7 processor, 64 GB of DDR4 memory and a 1 TB hard drive. AMD Radeon Pro 580 graphics provide dedicated video memory for rendering and video work. It ships with macOS 10.13 High Sierra, a USB keyboard and an optical mouse.

Sustained thermal performance in the sealed

The 14 nm Kaby Lake quad-core chip maintains its 4.2 GHz frequency during extended exports or compiles because the unified thermal design spreads heat across the large internal surface. Radeon Pro 580 VRAM remains stable under long compute sessions without the throttling seen in thinner notebooks. Fan noise rises gradually rather than spiking, keeping the workspace quiet during overnight batches.

Thunderbolt and USB 3 limits for external expansion

Two Thunderbolt ports and four USB 3 ports handle high-speed RAID arrays, audio interfaces and additional displays without daisy-chain bottlenecks. The Gigabit Ethernet and 802.11n wireless connections cap large file transfers at wired LAN speeds rather than the display’s raw throughput. Internal storage cannot be upgraded to SSD without specialist service, so external drives become the only path to faster boot and scratch volumes.