Mac OS X 10.6 Snow Leopard Included - Snow Leopard is either preinstalled or a separate Snow Leopard DVD is in the box for easy installation.

The new Mac Pro. Beauty outside. Beast inside.
Featuring the Intel Xeon "Nehalem" processor.

Accelerated architecture.
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. 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.

The fastest Mac graphics ever.
All-new high-performance graphics cards from AMD and NVIDIA make Mac Pro graphics technology faster than before. Perfect for motion graphics, 3D modeling, rendering, or animation, the NVIDIA GeForce GT 120 with 512MB of GDDR3 memory comes standard — and provides up to 2.9x the performance of previous Mac Pro standard graphics cards. For even more graphics horsepower, upgrade to the ATI Radeon HD 4870 with 512MB of GDDR5 memory. An ideal choice for the most demanding applications, this card features a wider memory bus and higher-performance GPU, resulting in up to 2x faster performance compared with the NVIDIA GeForce GT 120.

Graphics on display.
Every new Mac Pro graphics card features two display ports for maximum workspace flexibility. A Mini DisplayPort connects the new 24-inch Apple LED Cinema Display with ease. A dual-link DVI port connects a 30-inch Apple Cinema HD Display or any other DVI display. And with support for up to four NVIDIA GeForce GT 120 cards, you can connect more displays — up to eight total.

Massive storage.
The Mac Pro comes with four 3.5-inch internal hard drive bays for an enormous amount of internal storage — up to 4TB when you install four 1TB Serial ATA 3Gb/s drives.1 Each bay provides its own independent 3Gb/s channel for fast access to data. And thanks to the cable-free, direct-attach installation system, adding (or replacing) hard drives is a surprisingly simple process.

Ready to RAID - with a new card.
For the ultimate in data protection and enhanced performance, add the new Mac Pro RAID Card with 512MB of RAID cache, a 72-hour cache-protecting battery, and hardware RAID levels 0, 1, 5, and 0+1. A new cableless connection and intuitive Apple software make it a snap to install this optional card. It’s the perfect solution for workgroup servers, video pros working with high-bit-rate assets, or anyone who wants to protect critical data.

Double-layer burner times two.
Sure it’s great to have one 18x SuperDrive at your disposal, but think how much more productive you could be with two. Imagine backing up your data to two double-layer DVDs at once. Or burning Aperture projects to one DVD, while importing music from a CD into your iTunes library. With two optical drive bays in every system, the Mac Pro lets you do exactly that.

The most powerful Mac. With an OS to match.
Mac OS X Leopard is engineered to get the most out of the advanced architecture in the new Mac Pro. Built on a rock-solid UNIX foundation, Leopard delivers true 64-bit performance and incorporates industry-leading developer tools.

UNIX compliant.
What makes Mac OS X Leopard a powerful operating system is the technology behind it: a fully certified UNIX foundation. With a rock-solid UNIX infrastructure, it’s one of the most secure and stable operating systems on any platform. As a developer, you’ll appreciate Leopard even more because it’s fully UNIX compliant. That means it compiles and runs all your existing UNIX code, so you can deploy it in environments that demand full conformance. The result: Software performs exactly as it’s meant to. And because the powerful tools built into Leopard improve application performance on multicore processors, the new Mac Pro is the ideal workstation.

Multicore. Multitask.
At the heart of the new Mac Pro are one or two Quad-Core Intel Xeon “Nehalem” processors with an incredible amount of processing power. Optimized for multicore technology, Leopard provides powerful tools that make it easy to reap the benefits of the Mac Pro. The scheduler in Leopard, for instance, is very efficient at allocating tasks across multiple cores and processors. So Leopard spends less time managing tasks and more time performing computations. As a developer, you can build applications that execute the same efficiency, thanks to NSOperation, a breakthrough API that optimizes applications for multicore processing.

The greenest Mac Pro ever.
Highly recyclable and even more energy efficient, the new Mac Pro is designed with the environment in mind.

Highly recyclable.
The new Mac Pro is built with a recyclable aluminum enclosure. Aluminum is very desirable to recyclers, which means the raw materials used in the new Mac Pro can be reused in other products. We also simplified the internal design, replacing over 6 feet of cables with more material efficient connectors that allow easy disassembly at end of life. In addition, one of the few remaining plastic assemblies in the Mac Pro is made from postconsumer recycled plastic.