Processing

• 8-core: Two 2.26GHz, 2.66GHz, or 2.93GHz Quad-Core Intel Xeon 5500 series processors
• Quad-core: One 2.66GHz or 2.93GHz Quad-Core Intel Xeon 3500 series processor
• Next-generation Intel microarchitecture
  • 8MB of fully shared L3 cache per processor
  • Integrated memory controller
  • Turbo Boost dynamic performance (up to 3.33GHz on 8-core 2.93GHz system)
  • Hyper-Threading technology for up to 16 virtual cores
  • 128-bit SSE4 SIMD engine
  • 64-bit data paths and registers
  • Optimized for energy efficiency

Memory

• 1066MHz DDR3 ECC SDRAM
• 8-core: Eight memory slots (four per processor) supporting up to 32GB of main memory using 1GB, 2GB, or 4GB DIMMs
• Quad-core: Four memory slots supporting up to 8GB of main memory using 1GB or 2GB DIMMs

Graphics and displays

• Double-wide, 16-lane PCI Express 2.0 graphics slot with one of the following graphics cards installed:
  • NVIDIA GeForce GT 120 with 512MB of GDDR3 memory, PCI Express 2.0, one Mini DisplayPort, and one dual-link DVI port
  • ATI Radeon HD 4870 with 512MB of GDDR5 memory, PCI Express 2.0, one Mini DisplayPort, and one dual-link DVI port
• Multiple graphics card configurations available with two, three, or four NVIDIA GeForce GT 120 cards
• Support for up to eight 30-inch displays ¹
• Support for digital resolutions up to 2560 by 1600 pixels
• Support for analog resolutions up to 2048 by 1536 pixels
• Video adapters available for:
  • Additional DVI output using Mini DisplayPort to DVI Adapter (optional)
  • Additional dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter (optional)
  • VGA output using Mini DisplayPort to VGA Adapter or DVI to VGA Display Adapter (optional)

Communications

• Two independent 10/100/1000BASE-T Ethernet (RJ-45) interfaces with support for jumbo frames
• Bluetooth 2.1 + Enhanced Data Rate (EDR)
• Optional AirPort Extreme Wi-Fi card with 802.11n² (based on an IEEE 802.11n draft specification); IEEE 802.11a/b/g compatible

Storage

• Four 3.5-inch cable-free, direct-attach hard drive bays with built-in independent 3Gb/s Serial ATA channels; four internal hard drive carriers included
• Up to 4TB of internal storage³ in hard drive bays 1 through 4 using hard drives in the following capacities:
  • 640GB Serial ATA 3Gb/s, 7200 rpm, 16MB cache
  • 1TB Serial ATA 3Gb/s, 7200 rpm, 32MB cache
  • Optional Mac Pro RAID Card with 512MB cache and 72-hour cache battery backup
  • 18x SuperDrive with double-layer support (DVD±R DL/DVD±RW/CD-RW)
    • Writes DVD+R and DVD-R discs at up to 18x speed
    • Writes DVD+R DL and DVD-R DL discs at up to 8x speed
    • Writes DVD+RW discs at up to 8x speed
    • Writes DVD-RW discs at up to 6x speed
    • Reads DVDs at up to 18x speed
    • Writes CD-R and CD-RW discs at up to 32x speed
    • Reads CDs at up to 32x speed
  • One open optical drive bay for optional second SuperDrive

Electrical and operating requirements

• Line voltage: 100-120V AC or 200-240V AC (wide-range power supply input voltage)
• Frequency: 50Hz to 60Hz single phas