问题描述
我在 Microsoft 的网站上注意到两种不同的安装程序，一种用于 x64，一种用于 IA-64.参考:安装 .NET Framework 4.5、4.5.1
I was on Microsoft's website and noticed two different installers, one for x64 and one for IA-64. Reference:Installing the .NET Framework 4.5, 4.5.1
我的理解是 IA-64 是 x64 的子类，所以我很好奇为什么它会有一个单独的安装程序.
My understanding is that IA-64 is a subclass of x64, so I'm curious why it would have a separate installer.
推荐答案
x64 被用作经典"x86 架构的 64 位扩展的简称；过去几年生产的几乎所有普通"PC 都有基于这种架构的处理器.
x64 is used as a short term for the 64 bit extensions of the "classical" x86 architecture; almost any "normal" PC produced in the last years have a processor based on such architecture.
AMD 发明了 AMD64 扩展；Intel 或多或少被迫实施它们，首先将它们称为 IA-32e，然后称为 EM64T，最后称为 Intel 64(实际上，AMD 和 Intel 的扩展并不完全相同，但它们几乎相同).
AMD invented the AMD64 extensions; Intel was more or less forced to implement them, and called them first IA-32e, then EM64T and finally Intel 64 (actually, the AMD and Intel extensions aren't exactly the same, but they are almost identical).
许多人也称这个东西为 x86-64，以拥有一个独立于供应商的名称，并强调它是 x86 架构的 64 位演变这一事实.所有销售的带有64 位处理器"的普通"PC 都运行在 x86-64 架构上.
Many people also call this stuff x86-64, to have a vendor-independent name and to stress the fact that it's the 64 bit evolution of the x86 architecture. All the "regular" PCs that are sold with "64 bit processors" run on x86-64 architecture.
IA-64(Intel Architecture 64)是一种几乎完全不相关的 64 位架构(也称为 Itanium)，由 Intel 最初为高端服务器开发.据说 Itanium 可以替代 x86 架构，但这种架构并没有取得太大成功(出于各种原因)，因此您不太可能需要 IA-64 安装程序.
IA-64 (Intel Architecture 64) is an almost completely unrelated 64 bit architecture (also known as Itanium), developed by Intel initially for high-end servers. It was said that Itanium could have been a replacement for the x86 architecture, but this architecture didn't have much success (for various reasons), so it's unlikely that you'll ever need the IA-64 installers.
有关更多信息，您可以查看关于 x86-64 和 .
For more information, you may have a look at the wikipedia articles on x86-64 and Itanium.
这篇关于x64 和 IA-64 有什么区别?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！