The new top-of-the-line iMac gives you a 2.3GHz to 3.4Ghz Dual or Quad Core i5 processors, the ferociously fast Intel Iris or Radeon Pro graphics processing unit, a huge 1TB hard disk — and a spellbinding 21.5 to 27 inch flat-panel widescreen LCD display.

The brilliant 21.5 or 27 inch LCD flat screen — brighter, sharper and easier on your eyes than old-fashioned CRT displays .