MMX（MultiMedia Extensions，多媒体 扩展指令集 ）是英特尔于1996年发明的一项 多媒体指令 增强技术，包括57条多媒体指令，这些指令可以一次处理多个数据， MMX技术 在软件的配合下，就可以得到更好的性能。

It was sold as Pentium with MMX Technology (usually just called Pentium MMX); although it was based on the P5 core, it featured a new set of 57 "MMX" instructions intended to improve performance on multimedia tasks, such as encoding and decoding digital media data. The Pentium MMX line was introduced on 22 October 1996.

Intel Pentium MMX（Multi-Media eXtension）处理器于 1997 年 1 月 8 日面向市场发布。 桌面版的主频从 166 MHz 到 233 MHz，移动版的主频从 133 MHz 到 300 MHz。 Pentium MMX 等于是 Pentium 的加强版中央处理器，除了增加 67 个 MMX（Multi-Media eXtension） 指令以及 64 位数据总线之外，也将指令缓存和数据缓存（Cache）从之前的 8KB 增加到 16KB，内部工作电压降到 2.8 V 。 从这以后，英特尔的桌上型中央处理器皆包含了 MMX 指令。 关键数据：

It was sold as Pentium with MMX Technology (usually just called Pentium MMX); although it was based on the P5 core, it featured a new set of 57 "MMX" instructions intended to improve performance on multimedia tasks, such as encoding and decoding digital media data. The Pentium MMX line was introduced on October 22, 1996, and released in January ...

多媒体扩展化智能奔腾处理器(Pentium MultiMedia Extensions Processor，又称多能奔腾处理器)是在1996年底发售的，它为英特尔的第一代高级处理器技术，正式名称为“带有MMX技术的Pentium，代号为P55C。

MMX is a single instruction, multiple data instruction set architecture designed by Intel, introduced on January 8, 1997 [1] [2] with its Pentium P5 (microarchitecture) based line of microprocessors, named "Pentium with MMX Technology". [3]

The Pentium® processor with MMX™ technology extends the Pentium processor family, providing performance needed for mainstream desktop applications as well as for workstations. The Pentium processor with MMX technology is compatible with the entire installed base of applications for MS-DOS*, Windows*, OS/2* and UNIX*.

新增的57条mmx指令专门用来处理音频、视频等数据。 这些指令可以大大缩短CPU在处理多媒体数据时的等待时间，使CPU拥有更强大的数据处理能力。 这也就是其“多能”之名的来源。

MMX技术是Intel最新发明的一项多媒体增强 指令集 技术，它的英文全称可以翻译成“多媒体 扩展指令集 ”。 使得Pentium MMX即使在运行非MMX优化的程序时也比同 主频 的Pentium CPU要快的多。

1997年5月27日 · Taking after the Pentium Pro, the Pentium MMX has a highly advanced core, much more advanced than the Classic Pentium. It is because of this that a Pentium MMX-166 can outperform its...