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What this article shares with you is about the difference between Windows 7 32-bit and 64-bit. The editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article. Without saying much, follow the editor to have a look.

Windows 7, on the other hand, contains two major versions, one 32-bit and the other 64-bit. Is a 64-bit system necessarily better than 32-bit? Do you need 64-bit Windows 7? What is the difference between 32-bit systems and 64-bit systems?

The difference between memory and CPU

First of all, I believe that a large proportion of netizens who choose 64-bit Windows 7 have memory greater than or equal to 4GB. Under 32-bit Windows 7, 3.25 gigabytes of memory may be displayed, which makes many netizens feel uneasy. Yes, addressable memory space is indeed the most prominent feature of 32-bit Windows 7 and 64-bit Windows 7.

32-bit CPU (CPU running in 32-bit mode to be exact) can only address the memory of * 4GB, and 32-bit operating systems can only recognize the memory of * 4GB. Because in the system, in addition to memory, there are many storage devices, so the real memory space that can be used must be less than 4GB, that is, the 3.xxG shown in the system attributes.

However, the 64-bit CPU has changed a lot. The 64-bit CPU's * address space is 2 to the 64th power bytes. After calculation, its addressable space reaches an amazing 16TB (treabytes), that is, 16384GB. Of course, this is just a theory. in practical application, the versions of Windows 7 64bit are 8GB-192GB, in which the home ordinary version can support 8GB memory, the home premium version can support 16GB memory, and the 64-bit Windows 7 professional, enterprise and flagship editions can support 192GB memory.

In other words, users with memory greater than or equal to 4GB cannot make use of hardware resources due to 32-bit hardware limitations, so it is necessary to install 64-bit operating systems to make use of resources.

It should be noted that 64-bit systems need 64-bit CPU support. Before installing 64-bit Windows 7, please make sure that your CPU supports 64-bit. Generally speaking, CPU purchased after 2006 supports 64-bit mode.

If only this is taken into account, 32-bit Windows 7 is more suitable for users with less memory than 4GB, because the 64-bit version takes up more system memory resources and is counterproductive.

Next, let's consider the computing performance, which is also a great concern of many netizens.

In theory, the performance of 64-bit platforms is much better than that of 32-bit platforms. The reason is that the data bit width of the CPU general register is 64-bit for 64-bit platforms and 32-bit for 32-bit platforms, that is, 64-bit platforms can run 64-bit data instructions, and the processor can extract 64-bit data at a time (as long as two instructions, extracting 8 bytes of data at a time), which is twice as high as 32-bit (requires four instructions to extract 4 bytes of data at a time). In theory, performance will be doubled accordingly.

I believe that seeing here, there will be a lot of users wavering, and even many netizens with insufficient memory 4GB want to experience the power of 64-bit Windows 7, but there is still a problem.

This is the problem of application software.

Running 32-bit applications under 64-bit Windows 7 will not make you feel a leap in performance. Only 64-bit applications can give full play to the advantages of 64-bit platforms. However, it is obvious that the number of 64-bit applications is much lower than that of 32-bit platforms, but it is gratifying that more and more software developers are starting to port their software to 64-bit platforms.

At least for now, there are still a lot of software that are not compatible with the 64-bit version of Windows 7, all of which will take time to resolve.

From the above, we can see that the choice of 32-bit system or 64-bit system is not determined by one factor, we need to consider a variety of factors, and then combined with our own application and hardware actual situation, to make a choice.

These are the differences between Windows 7 32-bit and 64-bit. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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