Image Credit:  Apple Inc.

Introduced: March 3, 2009 Terminated: N/A

• Standard Configuration (MB535LL/A):
• 2 x Quad Core Intel Xeon X5520
• Build-to-Order Options:
• 2 x Quad Core Intel Xeon X5550
• 2 x Quad Core Intel Xeon X5570

• 32K/32K x8 L1 cache
• Each core has 256K L2 cache
• 8 MB of fully shared L3 cache per processor
• Integrated memory controller
• Turbo Boost dynamic performance (up to 3.33 GHz)
• Hyper-Threading technology for up to 16 virtual cores
• 128-bit SSE4 SIMD engine
• 64-bit data paths and registers
• Optimized for energy efficiency

• Standard Configuration (MB535LL/A):
• X5520:  2.26 GHz
• Build-to-Order Options:
  • X5550:  2.66 GHz ($1400 US)
  • X5570:  2.93 GHz ($2600 US)

Image Credit:  Apple Inc.

• QuickPath Interconnect (QPI)

• QPI is a bi-directional, point-to-point connection that provides quick access to the disk, I/O, and other subsystems

• 2.26 GHz (Built-in)

• Three open full-length PCI Express expansion slots
• One PCI Express 2.0 x16 slot
• Two PCI Express 2.0 x4 slots
• All slots provide mechanical support for 16-lane cards
• 300W combined maximum for all PCI Express slots

• Four 3.5-inch cable-free, direct-attach hard drive bays with built-in independent 3 Gb/s Serial ATA channels; four internal hard drive carriers included
• Optional Mac Pro RAID Card with 512 MB cache and 72-hour cache battery backup
• One open optical drive bay for optional second SuperDrive

• 1066 MHz DDR3 ECC SDRAM (PC-8500)

• Standard Configuration (MB535LL/A):   6 GB (6 x 1 GB)
• 1, 2, 4 GB

• 4 x 800-Mbps (2 front, 2 rear)

• Two independent 10/100/1000BASE-T Ethernet (RJ-45) interfaces with support for jumbo frames
• Bluetooth 2.1 + Enhanced Data Rate (EDR)
• Optional 802.11n AirPort Extreme wireless networking ($50 US)

• Front-panel headphone minijack and internal speaker
• Optical digital audio input and output TOSLINK ports
• Analog stereo line-level input and output minijacks

• NVIDIA GeForce GT 120 with 512 MB of GDDR3 memory

• 2 x NVIDIA GeForce GT 120 512 MB ($150 US)
• 3 x NVIDIA GeForce GT 120 512 MB ($300 US)
• 4 x NVIDIA GeForce GT 120 512 MB ($450 US)
• ATI Radeon HD 4870 512 MB ($200 US)

• Double-wide, 16-lane PCI Express 2.0 graphics slot
• Multiple graphics card configurations available with two, three, or four NVIDIA GeForce GT 120 cards
• Support for up to eight 30-inch displays
• Support for digital resolutions up to 2560 x 1600 pixels
• Support for analog resolutions up to 2048 x 1536 pixels

• Additional DVI output using Mini DisplayPort to DVI Adapter ($29 US)
• Additional dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter ($99 US)
• VGA output using Mini DisplayPort to VGA Adapter or DVI to VGA Display Adapter ($29 US)

• 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

• Standard Configuration (MB535LL/A):
  • 640 GB Serial ATA 3 Gb/s, 7200 rpm, 16 MB cache
• Build-to-Order Options:
  • 1 TB Serial ATA 3 Gb/s, 7200 rpm, 32 MB cache (Add $100 US)

• Standard Configuration (MB535LL/A):
  • None
• Build-to-Order Options:
  • 640 GB Serial ATA 3 Gb/s, 7200 rpm, 16 MB cache ($200 US each)
  • 1 TB Serial ATA 3 Gb/s, 7200 rpm, 32 MB cache ($300 US each)

Comments
This model originally shipped with Mac OS X v10.5 Leopard (included iTunes, Time Machine, Quick Look, Spaces, Spotlight, Dashboard, Mail, iChat, Safari, Address Book, QuickTime, iCal, DVD Player, Photo Booth, Front Row, Xcode Developer Tools); iLife '09 (includes iPhoto, iMovie, iDVD, iWeb, and GarageBand); Install/restore DVDs, Apple Keyboard with Numeric Keypad and Mighty Mouse; USB keyboard extension cable; 90 days of free telephone support and a one-year limited warranty.