Mac Pro vs Alienware M18x

Brand	Mac Pro	Alienware M18x
Price	$2,499.00	$1,999.00
Procesor	2.4GHz Quad-core Intel Core i7.	Intel® Core™ i7 2670QM 2.2GHz (3.1GHz w/Turbo Boost, 6MB Cache)
Memory	4GB 1333MHz DDR3 SDRAM — 2x2GB	4GB Dual Channel DDR3 at 1600MHz (2DIMMS)
Video Board	AMD Radeon HD 6770M with 1GB GDDR5	1.5GB GDDR5 NVIDIA GeForce GTX 560M
HDD	750GB 5400-rpm	500GB 7200RPM SATA 3Gb/s
Optical Drive	SuperDrive 8x (DVD±R DL/DVD±RW/CD-RW)	Slot-Load Dual Layer DVD Burner (DVD+-RW, CD-RW)
Display	MacBook Pro 17-inch Hi-Res Glossy Widescreen Display	18.4-inch WideFHD 1920 x 1080 WLED
OS	OS X Lion Up-to-Date Program	Genuine Windows® 7 Home Premium, 64bit .