What is x86-64? - Definition from WhatIs.com
Part of the Microprocessors glossary:

x86-64 is a 64-bit processing technology developed by AMD that debuted with the Opteron and Athlon 64 processor. x86-64 is also known as x64 and AMD64.

x86-64 enables 64-bit processing advantages such as increased memory space (up to 256TB) and processing more data per clock cycle. The technology is similar to Intel’s server-oriented IA-64. However, x86-64 made 64-bit computing more available to the mainstream consumer through its capacity to run 32-bit programs simultaneously without emulation or loss of performance.

Intel licenses x86-64 technology for use in their processors, much as AMD gets their x-86 from Intel.

This was last updated in July 2013
Contributor(s): Matthew Haughn
Posted by: Margaret Rouse

Related Terms

Definitions

  • biomimetics (biomimicry)

    - Biomimetic refers to human-made processes, substances, devices, or systems that imitate nature. Biomimetic technologies are also known as biomimicry: mimicry of biological systems. (WhatIs.com)

  • clock gating

    - Clock gating is the power-saving feature in semiconductor microelectronics that enables switching off circuits. Many electronic devices use clock gating to turn off buses, controllers, bridges and ... (WhatIs.com)

  • nanomedicine

    - Nanomedicine is the application of nanotechnology (the engineering of tiny machines) to the prevention and treatment of disease in the human body. (WhatIs.com)

Glossaries

  • Microprocessors

    - Terms related to microprocessors, including definitions about silicon chips and words and phrases about computer processors.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question. Find an Answer.Powered by ITKnowledgeExchange.com

Ask An IT Question

Get answers from your peers on your most technical challenges

Ask Question

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.