Upgraded i Mac The beautiful i Mac design that you know. But with even better specs. The Apple i Mac 4K has been upgraded to give you all the power you need to tackle serious projects (as well as everything else you do each day). You've got a fast processor impressive AMD graphics & a beautiful Retina Display. The 4K screen is able to create 1 billion colours so each video & image looks as good as it does in real life. Whether you're helping the kids with homework finishing off a video or making final edits to your photography every image will be full of bright & vibrant colour. Responsive computing Finish off a presentation then relax with a film or just browse around online – the quad-core i 3 processor gives you the power to do it all. & with 256 GB SSD everything will load in a flash. Like having loads of tabs open at once? Well the i Mac has 8 GB of RAM which helps you multitask without anything slowing down..