Mac Pro Quad-Core
One 2.8GHz Quad-Core Intel Xeon "Nehalem" processor
3GB (three 1GB) memory
18x double-layer SuperDrive
1TB hard drive
ATI Radeon HD 5770 with 1GB GDDR5
Size and weight

Height: 20.1 inches (51.1 cm)
Width: 8.1 inches (20.6 cm)
Depth: 18.7 inches (47.5 cm)
Weight: 39.9 pounds (18.1 kg)
Processing

8-core (standard configuration)
Two 2.4GHz Quad-Core Intel Xeon E5620 “Westmere” processors
12MB of fully shared L3 cache per processor
Turbo Boost dynamic performance up to 2.66GHz
Hyper-Threading technology for up to 16 virtual cores
Connections and Audio

- Four FireWire 800 ports (two on front panel, two on back panel)
- Five USB 2.0 ports (two on front panel, three on back panel)
- Two USB 2.0 ports on included keyboard
- Front-panel headphone minijack and internal speaker
- Optical digital audio input and output TOSLINK ports
- Analog stereo line-level input and output minijacks
- Multichannel audio through Mini DisplayPort
Graphics and Displays

Double-wide, 16-lane PCI Express 2.0 graphics slot with one of the following graphics cards installed:
ATI Radeon HD 5770 with 1GB of GDDR5 memory, PCI Express 2.0, two Mini DisplayPort outputs, and one dual-link DVI port
Memory
Dual Processor Systems2.4GHz system: 1066MHz DDR3 ECC SDRAM
2.66GHz and 2.93GHz systems: 1333MHz DDR3 ECC SDRAM
Eight memory slots (four per processor) supporting up to 32GB of main memory using 1GB, 2GB, or 4GB DIMMs
Storage

- Four 3.5-inch cable-free, direct-attach drive bays with built-in independent 3Gb/s Serial ATA channels; four internal drive carriers included
- Up to 8TB of internal storage in bays 1 through 4 using hard drives or solid-state drives in the following capacities:
- 1TB or 2TB hard drive, Serial ATA 3Gb/s, 7200 rpm, 32MB cache
- 512GB solid-state drive, Serial ATA 3Gb/s
- 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