Apple today released a long-awaited update to its iMac line that switches to a new NVIDIA-based platform. The new models use integrated GeForce 9400M video that lets them carry a Mini DisplayPort connector and, in the case of lower-end models, rely solely on integrated graphics while still providing fast 3D. They also represent an update to current-generation Core 2 Duo processors with DDR3 memory support and a native 1,066MHz system bus instead of the factory-overclocked older models.Just one 20-inch model is available on launch and starts at $1,199 with a 2.66GHz Core 2 Duo, 2GB of RAM, a 320GB hard drive, a SuperDrive and integrated NVIDIA graphics. Opting for a 24-inch iMac now costs just $1,499 and nets a 2.66GHz Core 2 Duo, 4GB of RAM, a 640GB hard drive and the SuperDrive. A higher-end 24-inch model at $1,799 adds a faster 2.93GHz Core 2 Duo as well dedicated GeForce GT120 graphics with 256MB of memory. One ultimate configuration at $2,199 carries a 3.06GHz Core 2 Duo, increases storage to 1TB, and picks up a faster GeForce GT130 graphics chipset with 512MB of memory.
Options exist for up to 8GB of DDR3 memory, an add-on 512MB ATI Radeon HD 4850 graphics chipset for 24-inch models, and wireless keyboard and mice. An iSight webcam, Bluetooth and 802.11n Wi-Fi are standard across all models. Apple ships its updated iMacs starting today from the online Apple Store.

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