Cyrix 6x86 processor is a x86 compatible superscalar microprocessor with
64-bit internal architecture, 80-bit Floating Point Unit, 16 KB write-back cache,
speculative execution, branch prediction and other advanced features.
There were three different versions of the 6x86 CPU:
- 6x86 - Original single-voltage version.
- 6X86L - Low-power version of 6x86 CPU with split core and I/O voltage.
- 6x86MX - 6x86 microprocessor with advanced MMX instruction set, split core
and I/O voltage and larger level 1 cache.
All Cyrix 6x86 processors used Pentium Rating (PR).
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