32-bit VS 64-bit

Computer memory has units and each unit has specific amount of storage in it. Most of the time operating systems are work on memory storage architecture called 32 bit or 64 bit. Versus zone is going to explain the difference between 32 bit and 64 bit. Following is the versus between 32 bit and 64 bit.

32-bit

Number of bits:
32
Architecture and Software Description:
32-bit architecture is based on registers, address or data buses 32 bits (4 octets) wide. For software, 32-bit typically means use of 32-bit linear address space.
Compatibility:
32-bit operating systems (OS) and applications require 32-bit CPUs.
Systems Available:
All editions of Windows 8, Windows 7, Windows Vista, and Windows XP, Linux.
Memory Limits:
32-bit systems are limited to 3.2 Gigabytes (GB) of RAM 32 bit Windows with address limitation do not attain to a full 4GB. It is hardware dependent, typically 3.25GB.
Pros:
Fewer issues, more widely compatible
Cons:
Less RAM access, less memory, less efficiency, fewer security features.

64-bit

Number of bits:
64
Architecture and Software Description:
64-bit architecture is based on registers, address or data buses 64 bits (8 octets) wide. For software, 64-bit means code use with 64-bit virtual memory addresses.
Compatibility:
64-bit OS requires 64-bit CPU, and 64-bit applications need a 64-bit OS and CPU.
Systems Available:
XP Professional, Windows Vista, Windows 7, Windows 8, as well as Mac OS X and Linux.
Memory Limits:
64-bit systems allow up to 17 Billion GB of RAM.
Pros:
• More RAM access • More efficiency • More virtual memory allocation • More security features.
Cons:
• Possible driver compatibility • Some motherboard RAM limits • Legacy issues

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