When we install the system, we often see that the system is 64-bit or 32-bit. Many users do not know the difference between 64-bit and 32-bit. What do 64-bit and 32-bit mean.
A 32-bit CPU (to be precise, a CPU running in 32-bit mode) can only address a maximum of 4GB of memory. Subject to this, a 32-bit operating system can only recognize a maximum of 4GB of memory. 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, which is 3.xxG displayed in the system properties we see.
However, the 64-bit CPU has changed a lot. The maximum addressable space of the 64-bit CPU is 2 to the 64th power of bytes. After calculation, its addressable space has reached an astonishing 16TB (treabytes), or 16384GB. Of course, this is just a theory. In practical applications, the versions of Windows 7 64bit are 8GB-192GB respectively. Among them, the Home Basic Edition can support 8GB of memory, the Home Premium Edition can support 16GB of memory, while the 64-bit Windows 7 Professional Edition, Enterprise and Ultimate editions can support up to 192GB of memory.
32-bit systems cannot run 64-bit software, and 64-bit systems can install most 32-bit software. In the past, because most of the software was developed based on the 32-bit architecture environment, the compatibility of 64-bit systems was not as good as that of 32-bit systems. But now 64-bit compatibility is also very strong, basically compatible with all kinds of software, and 64-bit viruses are much less. Especially for graphic design software, 64-bit and 32-bit software are very different in 64-bit systems, and 64-bit is really much faster.
Of course, we can't simply think that the performance of a 64bit processor is twice that of a 32bit processor because of the change in numbers. In fact, under the 32bit application, the performance of the 32bit processor will be even stronger, even if the 64bit processor, the performance is still stronger under the current situation under the 32bit application. Therefore, we must recognize the advantages of 64bit processors, but do not be superstitious about 64bit.
Some netizens have another question: Does 64-bit take up more memory than 32-bit? Yes, although 64-bit system performance is more powerful, it also takes up more memory.
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