iMac now offers a stunning Retina 4K display on the 21.5-inch model and an even more spectacular Retina 5K display on the 27-inch model. And a wider colour gamut means a palette of up to 25 per cent more available colours. So photos and videos look crystal clear and vibrant, and text is razor sharp.
• 27-inch (diagonal) 5120-by-2880-pixel Retina 5K display
• Stunning 5-millimetre-thin design
• 3.2GHz quad-core Intel Core i5 processor
• Powerful AMD Radeon R9 M390 with 2GB video memory
• 802.11ac Wi-Fi
• 8GB 1867MHz DDR3 SDRAM – two 4GB
• 1TB Fusion Drive
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Go to http://www.apple.com/imac-with-retina/specs for a complete set.