Professional velocity. 8-core or quad-core Mac Pro workstation Features: Two 2.66GHz Dual-Core Intel Xeon "Woodcrest" processors; 1GB memory (667MHz DDR2 fully-buffered DIMM ECC; NVIDIA GeForce 7300 GT graphics with 256MB memory; 250GB Serial ATA 3Gb/s 7200-rpm hard drive; 16x double-layer SuperDrive Dimensions: Height: 51.1 cm (20.1 inches) Width: 20.6 cm (8.1 inches) Depth: 47.5 cm (18.7 inches) Weight (stand