Discount for One 2.66GHz Quad-Core Intel Xeon, 3GB DDR3 ECC, 640GB SATA, NVIDIA GeForce GT 120 512MB, 18x double-layer SuperDrive, OS X 10.5 Leopard.
Many quad-core processors are composed of two separate dies, which means some cached data has to travel outside the processor to get from core to core. Thats an inefficient way to access information. Enter the Quad-Core Intel Xeon-Nehalem processor. Its single-die, 64-bit architecture makes 8MB of fully shared L3 cache readily available to each of the four processor cores. The result is fast access to cache data and greater application performance. Combine that with the other technological advances and you get a Mac Pro thats up to 1.9x faster than the previous generation.