The R9 series represents AMD’s top consumer graphics cards for desktop PCs, but look carefully for the ‘M’ prefix here which denotes that this is a mobile processor, integrated on to the logic board and originally designed for high-end laptops. Creative professionals on a budget, whether editing photos or videos, will also find plenty to like here, and at a sub-£2000 price point considerably more affordable than a PC workstation and separate 5K UHD monitor. More than just a great display, the iMac Retina 5K has a well-balanced computer driving it, with plenty of performance to power through games and any everyday task. Meanwhile the few Windows PCs that have exceeded full-HD resolution displays are hamstrung by an operating system that cannot consistently cater for the tighter pixel pitch. While the rest of the PC industry is still issuing low-grade and low-resolution displays with its PCs and laptops, Apple has spotted a key area for improvement and continues to raise screen quality to new heights. That was true before it gained an ultra-high resolution display, and it’s quite literally doubly true now. There is no desktop computer like the iMac. Hard to return to lower resolution monitors after using an expansive Retina-class panel.

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