Apple's Power Mac range has received a major upgrade - they have gone dual-core! The processors have more efficient cache and memory management, leading to better performance. This is the last major upgrade to the desktop machines before Apple switches to Intel chips next year.
All three basic models in the range come with 512MB of 533MHz DDR2 SDRAM, a 16x DVD and CD burner (SuperDrive) with double layer support, three PCI-Express slots and dual Gigabit Ethernet ports. The two other models are the Dual 2.3GHz, which has a single dual-core processor with 1MB of L2 cache per core, a 1.15GHz frontside bus and GeForce 6600 graphics with 256MB GDDR SDRAM, and the Dual 2GHz with a 1GHz bus and GeForce 6600 LE graphics with 128MB GDDR SDRAM.