these spec: Processor & Cache Memory Intel(R) Core™ i7 Mobile Quad Processors - 720QM (1.6GHz, 45W) w/6M L3 Cache - 10Gb/s DMI I/O BUS

comes with these spec: Processor & Cache Memory Intel(R) Core™ i7 Processor 620M/820QM/720QM : 2.66 GHz - 1.6 GHz, with Turbo Boost up to

Apple MacBook Pro MC371LL/A comes with these spec: Processor Intel Core i5 dual-core processor 2.4 GHz Main Memory 4 GB 1066 MHz DDR3 (supports up to 8 GB) Graphic system NVIDIA GeForce GT 330M (with 512 MB of GDDR3 video memory) + Intel HD Graphics (with 256

Acer Aspire TimelineX AS4820T comes with these spec: Operating System Genuine Windows(R) 7 Home Premium Processor Intel(R) Core™ i5-450M Mobile Processor (3MB Intel(R) Smart Cache, 2.4GHz) or Intel(R) Core™ i3-350M Mobile Processor (3MB Intel(R) Smart Cache, 2.26GHz) Chipset Mobile Intel(R) HM55 Express chipset Memory 4GB (2GB installed

ASUS UL30A-X5K comes with these spec: Processor & Cache Memory Intel(R) Core™2 Duo Processor SU9400/SU7300 : 1.4 GHz - 1.3 GHz, Intel(R) Celeron(R)