It’s seems like it’s been forever coming, what with Apple’s obsession with the iPhone and iPad, but yesterday, the empire of the Steve rev’d the iMac lines, properly. Core i3, i5 and i7 processors, discrete ATI Radeon HD graphics, Solid State Drive combo options, and Magic Trackpads, oh my!

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Processors. The iMac line has been standardised around Intel’s 32-nanometer process technology. Starting at the i3, models run up to the quad-core i5 and i7 CPU’s in the 27-inch iMac. The processors feature an integrated memory controller to access the system memory directly, allowing the new iMac to take full advantage of its faster 1333 MHz memory.

Graphics. The choices of nVidia or ATI GPU’s seem to have vanished, in their wake? Discrete (meaning the graphics processor is separate from the CPU) ATI Radeon HD processors. The 21-5-inch models get a choice of either the 4670 with 256MB of dedicated memory or the 5670 with 512MB of memory. If you’re getting a 27-incher, you can also choose the 5670 with 512MB of memory, or the 5750 with 1GB of GDDR5 memory. That’s a lot of GPU horse-power.

Hard Drives. Drive space is up to the 500GB-2TB range on the smaller iMac, and 1TB-2TB on the larger. Customers buying the 27-inch iMac also have the option to order a 256GB solid state drive (SSD) as a primary or secondary drive. The iMac SSD supports up to 215 MB/s data transfer rates for faster startup and application launch times.

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“We took the world’s best all-in-one and made it even better,” said Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing. “With the latest processors, high-performance graphics and signature aluminum and glass design, customers are going to love the latest iMac.”