Witric Power - Witricity Explained

Processor BrandIntel®
ProcessorIntel® Core™ i3
Processor Speed2.2GHz
Battery Type6-cell lithium-ion
Display TypeHigh-definition LED with TrueLife technology (720p)
Screen Size (Measured Diagonally)14"
Cache Memory3MB
System Memory (RAM)4GB
System Memory (RAM) Expandable To8GB
Type of Memory (RAM)DDR3
Hard Drive TypeSATA (5400 rpm)
Computer Hard Drive Size640GB
Optical DriveDouble-layer DVD±RW/CD-RW
Optical Drive SpeedsDrive speeds not specified
Direct-Disc LabelingNo
Digital Media Reader or SlotsYes, digital media card reader
GraphicsIntel® HD Graphics 3000
TV TunerNo

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I was looking on bestbuy.com and it looked like all the specs were around the same, please tell me why or what is different on each of these and which one is the better for me or if I should choose another around 1000 dollars. I play alot of games on it and open up a bit of tabs

The i3's specs:
Processor BrandIntel®
ProcessorIntel® Core™ i3
Processor Speed2.53GHz
Battery Type6-cell lithium-ion
Display TypeHigh-definition widescreen LED-backlit TFT with TruBrite technology (1366 x 768)
Screen Size (Measured Diagonally)15.6"
Cache Memory3MB
System Memory (RAM)4GB

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