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Deleted member 408734
Microsoft can use Snapdragon 808 on both Lumia 940 and 940 XL instead, ditching bad reputation and heating issues of Snapdragon 810, as Microsoft is not going to put 4K display screen after all in 940XL( 4K display obviously requires Snapdragon 810 processor,eg. Xperia Z5 premium, as Snapdragon 808 can't run 4K primary display screen).The 820 isnt even out yet. Nobody has it in their devices and they wont until next year.
It is not necessary to use different processors only for the sake of differentiation only when everybody clearly knows that Snapdragon 810 is a processor with much issues, heating, early throttling. Microsoft can release 940XL, later in early 2016 with Snapdragon 820 processor if they want to differentiate phablet category Lumia 940XL against regular Lumia 940. This might be a better idea.