32-Bit VS 64-Bit

Michael Morales  -  April 1, 2022  -   

The term "32-bit" refers to a CPU architecture that can transport 32 bits of data. It is the maximum quantity of data that your CPU can handle whenever executing a task.

64 bit refers to the number of bits required to process or transmit data parallel in computer architecture or the number of bits utilized for a single element in a data format. Computers with 64-bit microprocessors can handle data and memory addresses represented by 64 bits.

Key Difference

  • A 32-bit processor has 4 GB of addressable space, whereas a 64-bit processor has 16 exabytes of addressable space. 
  • 3.2 GB of RAM is the maximum you can store on a 32-bit system, while 17 Billion GB of RAM is possible to be stored on 64-bit systems.
  • The 32-bit processors require the 32-bit operating system, while the 64-bit processors are compatible with both 32-bit and 64-bit operating systems.
  • Using 32-bit processors is not the recommended choice for multi-tasking and stress testing, while 64-bit processors are ideal for performing these tasks.
  • The 32-bit operating system and applications need 32-bit CPUs, whereas the 64-bit operating system requires a 64-bit CPU

History Of 32-Bit

This list highlights important milestones from the history of 32-bit processors:

History Of 64-Bit

This list highlights important milestones from the history of 64-bit processors:

  • Using 64-bit CPUs in supercomputers has been common since the 1970s
  • In the early 1990s, reduced instruction set computing (RISC) based workstations and servers used it.
  • April 2003 marked the release of AMD's first 64-bit processor, the Opteron.
  • First ARM-based smartphones and tablets were sold in September 2013

Advantages Of 32-Bit Processor

A 32-bit processor offers the following benefits and advantages:

  • Its only advantage is that it supports older devices that date back to the early 2000s and the late 1990s.

Advantages Of 64-Bit Processor

A 64-bit processor offers the following benefits and advantages:

  • It enhances program performance and allows you to take advantage of 64-bit operating systems.
  • 64-bit provides improved security features.
  • The 64-bit version of Windows with a modern 64-bit processor lets you take advantage of additional security features that 32-bit users do not have access to.
  • In addition to hardware kernel patch protection, 64-bit processors offer a variety of other security features as well. 
  • You can create 16TB of virtual memory with a 64-bit processor. However, eight terabytes are allocated for user processes, and eight terabytes are reserved for kernel processes.
  • A 64-bit processor provides advanced capabilities. There is a storage capacity of 264 computational values.
  • The amount of RAM available on a 64-bit computer can reach 16.8 terabytes.
  • There are dual-core, six-core, quad-core, and eight-core models available for 64-bit processors. 
  • As a result of multiple cores, a larger number of calculations can be completed, increasing the processing power to make your computer faster.
  • Software programs that require a variety of types to run properly can be run efficiently using multi-core 64-bit processors.
  • The 64-bit permits access to virtual memory per process.

Disadvantages Of 32-Bit Processor

The following are some of the cons and disadvantages of using a 32-bit operating system:

  • The major drawback is that the vendors no longer support 32-Bit operating systems as they don't develop applications for the processor. 
  • Many processors typically require operating systems that are 64-bit.
  • Due to the lack of market demand or overall product demand, manufacturers rarely offer 32-Bit driver versions for their hardware.

Disadvantages Of 64-Bit Processor

The following are some of the cons and disadvantages of using a 64-bit operating system:

  • Older systems and hardware are not likely to be supported by 64-bit drivers.
  • The transition to 64-bit can be difficult for some older 32-bit software.


If you are considering updating your old computer to get better performance, it is better to upgrade to 64-bit computers if the software you are using is compatible with a 64-bit processor.

As more and more software becomes available as 64-bit versions, the majority of today's computers sold will have 64-bit processors. Therefore, you must ensure all the software you plan to use can run in a 64-bit version.

Would you like to know the technology behind cybersecurity? Read our blog to find out. 

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