Why is 64 bit called amd64

Add a comment. Active Oldest Votes. Improve this answer. Jon Lasser Jon Lasser 1, 10 10 silver badges 15 15 bronze badges. Do you say the father of 32 bit instruction is Intel and for 64 bit AMD? Community Bot 1. Ignacio Vazquez-Abrams Ignacio Vazquez-Abrams k 8 8 gold badges silver badges bronze badges. The Overflow Blog. Does ES6 make JavaScript frameworks obsolete? Podcast Do polyglots have an edge when it comes to mastering programming Featured on Meta.

Now live: A fully responsive profile. Linked Related 0. Hot Network Questions. All current general-public bit desktops and servers have an amd64 processor. There is a processor type called IA or Itanium. It's only found in supercomputers and a few high-end servers. A bit processor can run a bit system, so you have a choice of installing the amd64 version or the i version.

Here are a few points of comparison:. A few years ago, some programs had bugs when compiled for bit processors, but that's mostly a thing of the past. On the other hand, a bit program can only access less about 3GB of memory. Which one is faster depends on the application number crunching can be more than twice as fast in bit mode, while symbolic manipulation can be more than twice as slow.

You can use both the x86 and the amd64 images. I've seen these: x64 -- ambiguous between Itanium and x IA64 -- again, ambiguous with Itanium amd64 -- what you see now EM64T -- rare, but I've seen it before used to refer to both AMD and Intel x is the obvious best short name for the architecture. Tags: 64Bit Iso 32Bit. Related Is it worth reinstalling bit Ubuntu instead of bit on old hardware?

What does it take to run bit userland software on a bit kernel? Why can wine run 64bit programs on Linux but not on Mac?