feb 2011 vs oct 2011 macbook pro 15"

so looking @ getting macbook pro.

see macmall selling older version feb 2011 1649.99.

there huge difference? know processor upgraded , video is.

 

to in decision, can use these compare specifications of macs choose:

everymac.com's ultimate mac comparison
comparison of macintosh models
which mac right you?​

 

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