What is the difference between i386 and x8664 in centos

Differences: 1. Different architectures are compatible with different system programs. i386 is a 32-bit system, while "x86_64" is a 64-bit system; 2. i386 is widely applicable to various CPUs above 80386, while "x86_64" "Mainly applicable to 64-bit CPUs.

The operating environment of this article: centos 6.4 system, Dell G3 computer.

What is the difference between i386 and x8664 in centos

The main difference between i386 and x86-64 is:

1. i386 is the collective name for 32-bit microprocessors; x86- 64 (also known as x64, the English word 64-bit extended, abbreviation for 64-bit extension) is a 64-bit extension of the x86 architecture and is backward compatible with 16-bit and 32-bit x86 architectures.

2. Regarding the issuing company, i386 is issued by Intel Corporation, and x86-64 is designed by AMD.

3. In terms of release time, i386 was originally released on October 17, 1985, and x86-64 was designed and released in 1999.

4. x86-64 is backward compatible with 16-bit and 32-bit x86 architectures, while i386 is not compatible with x64.

5. Applicable CPU

(1) i386 is suitable for all 32-bit CPUs from Intel and AMD, as well as 32-bit CPUs using X86 architecture, including 8086, 80286, 80386, 80486, Pentium series (1.2.3.4), Celeron series, Pentium D series and centrino P-M, core duo, etc.

(2)

1. i386 is suitable for all 32-bit CPUs from Intel and AMD. As well as 32-bit CPUs via X86 architecture.

Intel platform includes 8086, 80286, 80386, 80486, Pentium series ( 1.2.3.4), Celeron series, Pentium D series

and centrino P-M, core duo, etc.

2. X86_64 is suitable for Intel's Core 2 Duo, Centrino Core 2 Duo, and Xeon And AMD Athlon64/x2, Sempron64/x2, Duron64 and other 64-bit CPUs using X86 architecture.

3.I686 is just a subset of i386. The supported CPUs start from Pentium 2 (686), and the previous models Not supported.

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