Windows7 flagship 64-bit and 32-bit difference

Windows7 flagship 64-bit and 32-bit difference

At present, we are using the WIN7 system, if it is greater than 4GB memory installed users need to pay attention to the system is the number of cases. If the user is greater than 4GB memory, the Windows7 64-bit system should be installed. However, the data width of CPU GPRs (general-purpose registers, universal Register) is up to 64 bits. If the dual-core CPU can be installed 64-bit system. Conversely, choose Windows7 32-bit.

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

Distinguishing one: the ability to process data

The CPU of a 32-bit computer can handle up to 32 bits of data at a time, such as its EAX register is 32 bits, and of course 32-bit computers can usually handle 16-bit and 8-bit data. 64 processing data for the computer at one time is much larger than 32 bits, running 64-bit data at a time.

Difference two: The supported memory is different (addressing ability is different)

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

Difference Three: architecture is different

Changes from 32 to 64-bit architectures are a fundamental change, since most operating systems must be modified in a comprehensive way to gain the benefits of a new architecture. Other software must also be ported to use new performance, and older software can generally be supported by hardware compatibility mode (the new processor supports older 32-bit version instruction sets) or software emulation.

or implement a 32-bit processor kernel directly inside a 64-bit processor (like Intel's Itanium processor, which contains the x86 processor kernel to perform 32-bit x86 applications). An operating system that supports a 64-bit architecture and typically supports both 32-bit and 64-bit applications.

Difference Four: The requirements for configuration are different

The 64-bit operating system can only be installed on 64-bit computers (the CPU must be 64-bit). At the same time, 64-bit common software needs to be installed to perform the best performance of 64-bit (x64). A 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, we can install a dual system to solve, but need to pay attention to 4G above 32-bit system can only recognize 4GB, so if the large memory installed users or preferred 64-bit system, after all, the latter is also more advanced. win732 and 64-bit difference I believe that we now have a certain understanding of it.