windows7 Ultimate 64-bit and 32-bit of difference what

Currently we are using WIN7 system, installed if the user is greater than 4GB of memory Need to pay attention to how many times the system is. If it is a user with more than 4GB of memory, Windows 7 64-bit system should be installed. However, it is necessary to consider whether the data width of the CPU GPRs (General-Purpose Registers) reaches 64 bits. If it is a dual-core or more CPU, it can be installed with a 64-bit system. The opposite is still to choose windows7 32-bit.

Windows7 Ultimate 32-bit and 64-bit four differences:

Difference 1: The ability to process data

The CPU of a 32-bit computer can process up to 32 bits of data at a time. For example, its EAX register is 32-bit. Of course, 32-bit computers can also handle 16-bit and 8-bit data. 64 is a much larger processing data for a computer than 32 bits at a time, running 64-bit data at a time.

Difference 2: Different supported memory (different addressing capabilities)

Many 32-bit systems support 4G of memory, while 64-bit can support hundreds of Gigabytes of memory.

Difference 3: Different architectures

Changes from 32-bit to 64-bit architectures are a fundamental change, as most operating systems must be comprehensively modified to take advantage of the new architecture. Other software must also be ported to use new features; older software can generally be supported by hardware compatibility mode (new processors support older 32-bit version instruction sets) or software emulation.

Or implement a 32-bit processor core directly on a 64-bit processor (like Intel's Itanium processor, which contains an x86 processor core for executing 32-bit x86 applications). An operating system that supports 64-bit architecture and generally supports both 32-bit and 64-bit applications.

Difference 4: Different requirements for configuration

64-bit operating systems can only be installed on 64-bit computers (CPU must be 64-bit). At the same time, 64-bit commonly used software needs to be installed to achieve the best performance of 64-bit (x64). The 32-bit operating system can be installed on a 32-bit (32-bit CPU) or 64-bit (64-bit CPU) computer.

Can a 64-bit operating system coexist with a 32-bit operating system? The answer is yes, you can install a dual system to solve it, but you need to pay attention to 4G or more memory on a 32-bit system can only recognize up to 4GB, so If it is a large memory installed user or a 64-bit system, the latter is more advanced. The difference between win732 and 64 is believed that everyone has a certain understanding now.