archamd64

Archamd64 is a non-official term sometimes used to describe running Arch Linux on 64-bit x86-64 processors (AMD64). It is not an official product name of Arch Linux, but appears in some community references to indicate the common pairing of Arch's userland and the 64-bit architecture.

The x86-64 architecture, originally developed by AMD as AMD64, extends 32-bit x86 with a 64-bit mode and large address space. Intel later adopted a compatible version, referred to as Intel 64. The architecture supports 64-bit general-purpose registers, expanded virtual and physical memory, and modern multimedia extensions.

Different distributions name the architecture differently. Debian and Ubuntu refer to it as amd64; Arch Linux reports the architecture as x86_64 in its package repositories and install media. The term archamd64 is used informally in some documentation to denote Arch on 64-bit hardware, but it is not standardized.

An Arch installation or ISO built for 64-bit hardware targets x86_64; the system uses pacman for package management and follows Arch's rolling-release model. 64-bit builds enable more RAM and modern software, while maintaining Arch's emphasis on simplicity, user control, and a minimal base installation.

See also: amd64, x86-64, Arch Linux.