MacBook Pro 15 Enclosure ……..Precision aluminum unibody processor speeed……..2.53GHz Intel Core 2 Duo L2 Cache …..6MB shared Memory …….4GB (two 2GB SO-DIMMs) of 1066MHz DDR3 SDRAM; supports up to 4GB Hard Drive….320GB Serial ATA; 5400 rpm Slot-loading optical drive….. 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW) Graphics……NVIDIA GeForce 9600M GT graphics processor; and NVIDIA GeForce 9400M graphics processor with 256MB of DDR3 SDRAM shared with main memory3 Graphic Memory….512MB GDDR3 Video Bu