For the first time since its inception in 1998, the iMac has broken the 3GHz barrier. Apple has refreshed its iMac lineup with new 45nm Intel processors, and the top-of-the-line 24" model has simultaneously gotten a price cut to $2,199, an upgrade to a 3.06GHz Core 2 Duo processor with 6MB of L2 cache and a 1066MHz front-side bus, and an upgrade to Nvidia's GeForce 8800 GS graphics processor. The same system previously cost $2,249 and sported a 2.8GHz Core 2 Duo with Radeon HD 2600 Pro graphics from AMD.
Although the flagship model seems to have received the bulk of the upgrades, Apple has also updated the other three systems in the iMac line. The 20" $1,199 version has gotten a speed bump from 2GHz to 2.4GHz, the 20" $1,499 variant is up from 2.4GHz to 2.66GHz, and the 24" $1,799 iMac has been boosted from 2.4GHz to 2.8GHz. The latter two systems now come with 2GB instead of 1GB of memory as standard, too.
All four newly updated iMacs are available right now from the Apple store. Lead times range from 24 hours to three days.