Article: iMac speed boost; Apple's all-in-one Macs get the latest processor.(Product/service evaluation)

Finally, eight months after the aluminium iMac made its debut (macworld.com/3617), Apple has released an update to its flagship consumer desktop model. We found that, under the hood, the new iMacs differ significantly from the original aluminium iMac, and these differences result in speed increases.

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Speed Bumps

On the outside, nothing has changed, and the iMac is still available in 20- or 24-inch aluminum-encased models. The major changes involve the Intel Core 2 Duo (Penryn) processor now at the heart of the iMac. The Penryn line's speeds start at 2.4GHz (the speed of the previous high-end standard iMac's processor), and include 2.66GHz, ...

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