Analysis of the four differences between the 64-bit and 32-bit of the Windows 7 Ultimate system

The difference between the configuration requirements is different

The 64-bit operating system can only be installed on a 64-bit computer (CPU Must be 64-bit), 64-bit software is required to install 64-bit (x64), and 32-bit operating system can be installed on 32-bit or 64-bit computers.

Tip: 64-bit operating system and 32-bit operating system can coexist, can be installed by dual system, but need to pay attention to 4G or more memory on a 32-bit system can only recognize up to 4GB, so if it is Large memory users are still the preferred 64-bit system, after all, the latter will be more advanced.

Differences 2, 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, and older software can generally be supported by hardware compatibility mode (new processors support older 32-bit version instruction sets) or software emulation.

Or directly implement a 32-bit processor core in a 64-bit processor, support 64-bit architecture operating system, and generally support both 32-bit and 64-bit applications.

Difference 3, the ability to process data

32-bit system computer CPU can handle up to 32-bit data at a time, for example, its EAX register is 32-bit, of course, 32-bit computers can also usually Processing 16-bit and 8-bit data, 64 is a computer that processes data much more than 32 bits at a time, running 64-bit data at a time.

Difference 4, different supported memory (different addressing capabilities)

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