With the muscle for serious audio production, this Apple Mac Pro computer is loaded with a 2.66GHz Quad-Core Intel Xeon ""Nehalem"" processor, 3GB of RAM, a 640GB hard drive, NVIDIA GeForce GT 120 with 512MB of GDDR3 memory, 18x SuperDrive, and much more.The Apple Mac Pro Computer has a redesigned interior that feels like the well-organized workstation that it is. Designed to be customized, you won't find a rat's nest of components inside the Mac Pro. You don't need to turn the system on its side or struggle to reach into awkward spaces to make changes. Just remove the side panel for instant, easy access to everything. Slide out the processor tray to add memory. Slide out hard drive bays to add storage. Slide a simple bar to change up to 4 expansion cards at once. And with the Mac Pro computer's abundance of I/O ports both front and back, you'll have room for all your external devices. And that's only if you want to expand. Next-generation architectureMany 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. That's 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 that's up to 1.9x faster than the previous generation.Memory bottlenecks begoneSystem memory is often connected to a processor through a separate I/O controller. But each Intel Xeon ""Nehalem"" processor features an integrated memory controlleranother leap forward for workstation system architecture. By connecting memory directly to the processor, this Mac Pro processor has faster access to data stored in memory, and memory latency is reduced by up to 40 percent.The integrated memory controller, along with fast 1066MHz DDR3 ECC SDRAM, also gives Mac Pro up to a 2.4x increase in memory bandwidth over previous generations. More bandwidth allows for more data to be fed to the processor faster, helping each core spend its time processing data, not waiting for information to arrive. Its Error Correction Code (ECC) corrects single-bit errors and detects multiple-bit errors automatically. That's especially important in mission-critical and compute-intensive environments.Power when (and where) you need itThis Mac Pro introduces Turbo Boost: a dynamic performance technology that automatically boosts the processor clock speed based on workload. If you're using an application that doesn't need every core, Turbo Boost shuts off the idle cores while simultaneously increasing the speed of the active ones.The virtue of virtual coresThe Intel Xeon ""Nehalem"" processors support Hyper-Threading, which allows two threads to run simultaneously on each core. With this 8-core version, it presents 16 virtua