Apple today updated its all-in-one iMac lineup with next generation quad-core processors, powerful new graphics, groundbreaking high-speed Thunderbolt I/O technology and a new FaceTime HD camera. Starting at $1,199, the new iMac is up to 70 percent faster and new graphics deliver up to three times the performance of the previous generation.

“Our customers love the iMac’s aluminum enclosure, gorgeous display and all-in-one design,” said Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing. “With next generation quad-core processors, powerful new graphics, Thunderbolt technology and a FaceTime HD camera, we've made the world’s best desktop even better.”

The new iMac features quad-core Intel Core i5 processors with an option for customers to choose Core i7 processors up to 3.4 GHz. These next generation processors feature an integrated memory controller for an amazingly responsive experience and a powerful new media engine for high-performance video encoding and decoding. With new AMD Radeon HD graphics processors, the new iMac has the most powerful graphics ever in an all-in-one desktop.

iMac is the first desktop computer on the market to include groundbreaking Thunderbolt I/O technology. The 21.5-inch iMac has a single Thunderbolt port while the 27-inch model features two ports for even greater expansion. iMac includes a built-in FaceTime HD camera and Apple’s innovative FaceTime software for crisp, widescreen video calling the whole family can enjoy.

The new iMac is available through the Apple Store, Apple’s retail stores and Apple Authorized Resellers. The 21.5-inch iMac is available in two configurations: one with a 2.5 GHz quad-core Intel Core i5, 512MB AMD Radeon HD 6750M and 500GB hard drive for a suggested retail price of $1,199; and one with a 2.7 GHz quad-core Intel Core i5, 512MB AMD Radeon HD 6770M and 1TB hard drive for a suggested retail price of $1,499. The new 27-inch iMac is available in two models: one with a 2.7 GHz quad-core Intel Core i5, 512MB AMD Radeon HD 6770M and 1TB hard drive for a suggested retail price of $1,699; and one with a 3.1 GHz quad-core Intel Core i5, 1GB AMD Radeon HD 6970M and 1TB hard drive for a suggested retail price of $1,999.

You can get more information about the new iMacs on Apple’s website.