MacBook Pro Retina Display

OSX Mountain Lion
2.3 GHz Intel Core i7
8GB 1600 Mhz DDR3 Memory
NVIIDIA GeForce GT 6500M 1024 MB Graphics
2880x1800 Built in Colour LCD retina Display and 32" Technika screen

MacBook Pro 15"

Mountain Lion
2.6GHz Intel Core i7
8GB 1600 MHz DDR3
NVIDEA GeForce GT 650M w/ 1GB of VRAM
1660x1050 15" LCD screen and Asus 1680x1050 22" second monitor

MacBook Pro

OS X Lion
2.8 GHz Intel Core i7
4GB memory
Intel HD Graphics 3000 384 MB