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What is the difference between windowsx64 and x86

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2023-06-08 09:28:4129268browse

The difference between windowsx64 and x86 is: 1. The instruction set architecture is different. x86 is based on a 32-bit instruction set, while x64 is based on a 64-bit instruction set; 2. The memory address space is different. Memory, while x64 CPU can access larger memory space; 3. Software compatibility differences, x64 systems cannot run all x86 applications or require special patches to support; 4. Driver compatibility is poor, old hardware devices may only be designed for The driver for x86 system makes x64 unusable.

What is the difference between windowsx64 and x86

Operating system for this tutorial: Windows 10 system, win10 X64 version, Dell G3 computer.

The difference between windowsx64 and x86 is:

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1. Instruction set architecture:

x86 is based on 32-bit instruction set, while x64 is based on the 64-bit instruction set. This means that x64 CPUs can process more data simultaneously and therefore perform better on processor-intensive tasks.

2. Memory address space:

x86 CPU can only handle a maximum of 4GB (2 to the 32nd power) of memory, including system memory and graphics card memory, etc. And x64 CPU can access larger memory space. In fact, for 64-bit operating systems, they can support more than 16EB of RAM, making 64-bit applications more scalable.

3. Software compatibility:

Normally, x64 systems cannot run all x86 applications. Although most x86 software can run normally on x64, A small number of applications that are tied to the hardware may not run on x64 or require specialized patches to support them.

4. Driver compatibility:

For hardware drivers and plug-ins for specific devices, they must have versions suitable for the operating system and CPU architecture, otherwise they will can not work. Some older hardware devices may only have drivers for x86 systems and therefore cannot be used on x64 systems.

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