Apple has released new iMacs computers, featuring new Intel Core i3, Core i5 and Core i7 processors and new graphics cards.

Apple's new iMac

The new iMac line feature dual-core processor speeds up to 3.6 GHz, quad-core speeds up to 2.93 GHz and discrete graphics including ATI Radeon HD 5750.

The company has introduced new Magic Trackpad, available separately for $69, which gives iMac users the same Multi-Touch gestures that iPhone and iPad provide.

Apple Magic Trackpad

Apple said that all of its Macs also comes with Mac OS X Snow Leopard operating system, and iLife application. The new iMac’s are available with up to four 512GB solid state drives, in 21.5-inch and 27-inch models, at prices starting at £1,999.

The SD card slot on the iMac now supports the SDXC format and the iMac SSD supports up to 215 MB/s data transfer rates. Every iMac comes with Apple’s Magic Mouse; and customers can also order the new Magic Trackpad as an option.

Philip Schiller, senior vice president of worldwide product marketing at Apple, said: "We took the world’s best all-in-one and made it even better. With the latest processors, high-performance graphics and signature aluminum and glass design, customers are going to love the latest iMac."