The new Apple iMac 21.5-inch, 1920-by-1080 display has 17 percent more pixels than the previous 20-inch iMac. The new Apple iMac 27-inch, 2560-by-1440 display features a whopping 78 percent more pixels than the 21.5-inch Apple imac 21.5 inch reviews desktop computer. And what's more, a 1000:1 contrast ratio assures you more vibrant colors and blacker blacks; all that in a widescreen display with a 16:9 aspect ratio - the same as an HD TV.

With quad-core processors and superior graphics, the new iMac is the fastest and most powerful iMac up till now. The new fastest ever Apple iMac comes with high-performance graphics that make games run smoother, load photos quicker, and make applications work better. If you want even faster graphics, there is also an option to choose an iMac with a more advanced ATI graphics processor.

The 21.5-inch and 27-inch iMac models offer fast Intel Core 2 Duo processors up to 3.33GHz. The 27-inch iMac features Quad-core power with a 2.66GHz Intel Core i5 processor or 2.8GHz Intel Core i7 processor. The new iMac has 4GB of 1066MHz DDR3 memory standard, with room in its four SO-DIMM slots for up to 16GB, so you can run more applications at the same time. And with a Serial ATA hard drive up to 2TB, feel free to add up more photos, videos, and music.