| Processor |
2.8GHz Quad-Core Intel Xeon “Nehalem” |
Two 2.4GHz Quad-Core Intel Xeon “Westmere” |
Two 2.66GHz 6-Core Intel Xeon “Westmere” |
| Cache |
8MB fully shared L3 cache |
12MB fully shared L3 cache per processor |
| Memory |
3GB (three 1GB DIMMs) of 1066MHz DDR3 ECC SDRAM |
6GB (six 1GB DIMMs) of 1066MHz DDR3 ECC SDRAM |
6GB (six 1GB DIMMs) of 1333MHz DDR3 ECC SDRAM |
| PCI Express 2.0 graphics |
ATI Radeon HD 5770 with 1GB GDDR5 memory, two Mini DisplayPort outputs and one dual-link DVI video output |
| Hard disk drive |
1TB Serial ATA (3Gb/s); 7200 rpm |
| Optical drive |
18x SuperDrive with double-layer support (DVD±R DL/DVD±RW/CD-RW) |
| Wireless |
Built-in AirPort Extreme 802.11n Wi-Fi3 and Bluetooth 2.1 + EDR (Enhanced Data Rate) wireless technology |
| PCI Express |
Three open full-length PCI Express 2.0 expansion slots with mechanical support for 16-lane cards; 300W combined maximum for all PCI Express slots |
