Wednesday, November 13, 2013

Why Apple Is Using 64bit Processors

There are two reasons why Apple chose to switch to 64bit processors, and why other manufacturers are also about to switch.

First, many of the tasks that we used to use a "proper" computer for are now done on a mobile device, such as a tablet or smartphone.  This means the demands made on the processor are going up as these devices displace the desktop PC.

Secondly, if you need more powerful software to do these tasks, you're going to need more RAM (memory).  A 32bit processor can only see the address range from byte 0 to byte 4,294,967,295 - in other words 4GB of RAM.  If you want to see more RAM, you need more bits on your register - hence the other reason to move to 64 bits.