32 bit vs 64 bit

– The terms refer to the way a computer’s processor (CPU) handles information. 64-bit systemhandles large amounts of RAM more effectively than 32-bit system.
– Refers to the size of the data types it handles & the size of its registry
– 64 bit processor is capable of storing 264  computational values (incl. memory addresses)
– 64 bit processor is able to access over 4 billion time as much physical memory than 32-bit processor
– 64 bit processors are capable of utilizing much more (handling more amount of RAM)

– if you have less than 4GB RAM, you don’t need 64-bit CPU

– applications that tend to use large amounts of memory may show vast improvements with the upgraded processor (image/video editing software, 3d rendering, video games)

References:
1. http://windows.microsoft.com/en-us/windows/32-bit-and-64-bit-windows#1TC=windows-7
2. http://www.digitaltrends.com/computing/32-bit-64-bit-operating-systems/

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