The Cyrix 6x86 is a line of sixth-generation, 32-bit x86 microprocessors designed and released by Cyrix in 1995. Cyrix, being a fabless company, had the chips manufactured by IBM and SGS-Thomson. [1][2] The 6x86 was made as a direct competitor to Intel's Pentium microprocessor line, and was pin compatible.

National fabricated their own chips and the 6x86MX was re-named MII. Compared to early 6x86MX CPUs the MII had some enhancements to its processor core. Heat output was reduced allowing it to rise to clock speeds over 220MHz. The MII also required non-standard bus speeds at 75 or 83MHz on socket 7 boards and therefore had some troubles with ...

随着制程的进步，6x86MX进一步将频率提升至300MHz（PR433），同时更名为「Cyrix MII」，以表示竞争对手为Pentium II。 但由于前面因代工和耗电问题耽误了时间，投入市场较晚，此时Intel的P6（Pentium Pro、Pentium II）和AMD的K6在整数性能上已经追上Cyrix，Cyrix在浮点性能 …

作为Cyrix公司独自研发的最后一款微处理器，Cyrix MII于1998年3月开始 量产。 它除了具有Cyrix 6x86系列微处理器本身的特性外，也开始支持MMX指令集（实际上MII就是6X86MX的继承和 …

6x86MX进一步将频率提升至300MHz（PR433），同时更名为「Cyrix MII」，以表示竞争对手为Pentium II。 但由于推出较晚，Intel的P6（Pentium Pro、Pentium II）和AMD的K6在整数性能上已经追上Cyrix，浮点能力本来就弱，Cyrix MII失去竞争力。

Response: It's desktop MII CPU, the package type is flip-chip staggered ceramic PGA. here is a photo for your collection. 7 Different 6x86 / MII Processors. All split voltage models, and MIIs are lower voltage models. Fastest one: MII-433GP, 300MHz. Coincidentally, the MII 266GP pictured by Geo is now in this group. Posted by: Sk. Reazul Hashem.

Cyrix MII-333GP (83 MHz 2.9V) desktop CPU: detailed specifications, benchmarks, side by side comparison, pictures and more from CPU-World

1996年，Cyrix发布了MII系列处理器，进一步巩固了其在市场上的地位。 MII系列在6x86架构基础上，加入了对MMX多媒体指令集的支持，采用了更先进的制造工艺，支持更高的时钟频率和更大的缓存。

2023年4月25日 · 【图吧日常】30包邮的Cyrix MII 陶瓷CPU开箱附IBM 6x86对比

2022年9月13日 · 6x86MX进一步将频率提升至300MHz（PR433），同时更名为「Cyrix MII」，以表示竞争对手为Pentium II。 但由于推出较晚，Intel的P6（Pentium Pro、Pentium II）和AMD的K6在整数性能上已经追上Cyrix，浮点能力本来就弱，Cyrix MII失去竞争力。