Win7 32-bit and 64-bit difference and utilization rate

The latest computer configuration is better than a few years ago, the use of XP system is no longer suitable for the full performance of the computer, so the Win7 system is currently the best choice. Win7 and the previous XP system, also divided into several versions, now users generally choose win7 32-bit or 64-bit system, then the two versions of the Win7 system what is the difference? Which version of the easy to use a bit higher?

　　Win7 32-bit and 64-bit difference

Let's talk about the difference in hardware configuration. A large percentage of users who choose 64-bit Windows 7 are memory greater than or equal to 4GB. With 32-bit Windows 7, memory may be shown to use 3.25G, which makes many netizens feel uneasy. Yes, addressable memory space is indeed the most notable feature of 32-bit Windows 7 and 64-bit Windows 7.

The 32-bit CPU, which is precisely the CPU running in 32-bit mode, can only address up to 4GB of memory, and the 32-bit operating system can only recognize the maximum 4GB of memory, because there are many storage devices in the system, in addition to memory, The amount of memory that is really available is certainly less than 4GB, which is the 3.xxG shown in the system properties that we see.

However, the 64-bit CPU has changed a lot, the 64-bit CPU's maximum addressing space is 2 of the 64-square bytes, the calculation of its addressable space reached an astonishing 16TB (treabytes), that is, 16384GB. Of course, this is only a theory, from the actual application, the Windows 7 64bit versions are 8GB-192GB, where the home version can support 8GB memory, home Advanced Edition can support 16GB memory, and 64-bit Windows 7 Professional Edition, The enterprise and flagship versions support up to 192GB of RAM.

32-bit Windows 7 configuration

That is, a user with a memory greater than 4GB is limited by 32-bit hardware and therefore cannot maximize hardware resources, which makes it necessary to install a 64-bit operating system to maximize resource utilization. Note that the 64-bit system requires 64-bit CPU support, before installing 64-bit Windows 7, please make sure your CPU supports 64 digits, generally, 2006-bit mode is supported for the CPUs purchased in the following years.

If this is the only consideration, 32-bit Windows 7 is better for users with less than 4GB of memory because the 64-bit version consumes more system memory resources and is counterproductive.

Next we consider the operational performance, this is also a lot of netizens are very concerned about. Theoretically, the performance of the 64-bit platform is much higher than the 32-bit platform. The reason is that the CPU general registers the data bit width, the 64-bit platform is 64-bit, and the 32-bit platform is 32-bit, that is, 64-bit data commands can be run by the processor, which can fetch 64 bits of data at a time (as long as 64 instructions, and two bytes at a time), than 8 bits (requires 32 instructions, Extracting 4 bytes of data at a time is one step higher, and the theoretical performance will increase 1 time times accordingly.

　　Win7 32-bit and 64-bit usable rate

With regard to the use rate, ordinary users basically do not feel which version of the system is better to use, if the memory capacity of the computer within 4GB, whether the installation of Win7 32-bit system, or Win7 64-bit system, will not feel the obvious easy to use and bad, if greater than 4GB of memory, it should be installed Win7 64-bit system, will not cause the waste of hardware resources. In general, the low-end configuration of the computer, the use of 32-bit system better, the version is lower and simpler, accounting for less CPU resources, which is why the old computer use XP system to run faster some of the reasons.

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