A Developer’s Guide to Apple’s 64-Bit A7 Chip

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Without getting into too much about how microprocessors work, the basic idea behind 64-bit processors is that they can address more memory. With that extra memory, more complex software — whether it’s graphical or deeply computational — can run better and faster while consuming less power.

In the desktop world, the move to 64-bit was essential because it allowed applications and operating systems to access more than 4GB of RAM. This was crucial, especially in gaming and in graphical applications.

 

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