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0, You're already past the 30-day period where you can bring it in and pay a 10% restocking fee to return it. Also, you would have been better off making a new thread than hi-jacking someone else's thread.

damned if you do, damned if you dont..

stay here = i'm a hijacker (sorry for hijacking, by the way)

start a new thread = "go to MRoogle"..

so, eh.
 
Better battery on the 13", same HDD, the i5 has a better gpu.
Actually if you are doing heavy duty work the i5 gets better battery life because it gets it done faster (it's ~25% faster) and can throttle much lower when it is idle
clock speeds don't really mean anything. the clock speed myth was created by intel during the P3-P4 era in order to sell stock.

if taken on the same architecture GHz has meaning (the die shrink to a lesser extent)
 
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