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Intel处理器Tick-Tock发展模式(转)  

2012-05-13 17:40:30|  分类: 硬件常识 |  标签: |举报 |字号 订阅

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一年多前,就听说过Intel CPU的Tick-Tock发展模式,不过一直没详细地去认识它。今天网上看了点资料,更加理解了,做个笔记吧。

Intel公司的处理器在过去几年的发布都遵守一个模式,那就是“Tick-Tock”模式。所谓的Tick,是指处理器生产工艺流程的技术改进 (比如:45nm/32nm/22nm等工艺技术),可以显著地提高晶体管密度。所谓的Tock,是指处理器新的微架构 (microarchitecture),不仅可以提高效率和性能,而且会增强一些功能(如:硬件支持的视频解码功能、加解密功能)。那么,Tick- Tock模式,就是Tick、Tock都会间隔一年的出现,即:今年出工艺流程的改进(Tick),明年就出新的微架构(Tock)。

下面这张图片可以很好的说明问题:

Intel’s Tick-Tock Model

Designed to maintain cadence in ongoing innovation of mainstream Intel? microprocessor technology, Intel utilizes the ‘tick-tock’ model. Using this model, Intel has successfully delivered next-generation silicon technology as well as new processor microarchitecture on alternating years for the past several years.

Tick (process technology advancement) – Fulfilling the prediction of Intel founder and technology visionary Gordon Moore, in what is popularly called Moore’s Law, Intel delivers a new silicon process technology every other year. This ‘tick’ of process technology advancement dramatically increases transistor density while enhancing performance and energy efficiency within a smaller, more refined version of the microarchitecture in production at the time.

Tock (new microarchitecture) – Delivering a new microarchitecture on alternating years, Intel is able to optimize the value of the increased number of transistors and technology updates enabled by the new process. Intel? microarchitecture advancements not only improve energy efficiency and performance, but increase functional density with features, such as hardware-supported video transcoding, encryption/decryption, and other integrated technologies.

For instance, Intel? microarchitecture code name Nehalem (a tock) was initially introduced on the 45nm process technology (a tick). The 2010 Intel? Core? processor family was the 32nm ‘tick’ version of the Intel? microarchitecture code name Nehalem. Intel microarchitecture code name Sandy Bridge (tock), initially introduced on 32nm process technology, is the foundation of the 2nd generation Intel? Core? processor family. And, the 22nm tick of the 2nd generation Intel Core processor family is due to be in production at the end of 2011.

 

更详细的资料:

http://en.wikipedia.org/wiki/Intel_Tick-Tock

http://www.intel.com/content/www/my/en/silicon-innovations/intel-tick-tock-model-general.html

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