http://www.sammobile.com/2014/12/23/...4-mobile-dram/
A sneak peak of what next gen hardware could look like. Intel atom tablets don't use conventional ram modules and use mobile ram like arm processors do. With 4gb ram in mass production then smaller Windows tablets can have more ram and overcome the 2gb ram limitation and it also means smaller Windows tablets will eventually ship with 64 bit windows and 64 bit firmware.