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---
title: "x86_64"
type: concept
tags: [linux, 架构, cpu]
date: 2026-04-16
---
## Definition
x86_64也称 x64是 64 位 x86 架构,是 Intel 和 AMD 处理器使用的指令集扩展。
## Aliases
- x64
- amd64
## Key Characteristics
- 64 位寻址能力,支持超过 4GB 内存
- 向后兼容 32 位 x86 指令
- 当前服务器和桌面主流架构
## Related Concepts
- [[ARM64]]:另一种 64 位架构,用于移动设备和部分服务器
- [[ELF]]Linux 可执行文件格式标准
## Usage
在 Linux 中可通过以下命令检测:
- `uname -m` 输出 x86_64
- `lscpu` Architecture 字段显示 x86_64