Cyrix 6x86

processor (6x86) IBM and Cyrix's sixth-generation,

64-bit 80x86-compatible microprocessor. The 6x86 combines

aspects of both RISC and CISC. It has a superscalar,

superpipelined core, and performs register renaming,

speculative execution, out-of-order completion, and datadependency removal. It has a 16-kilobyte primary cache and

is socket-compatible with the Pentium P54C. It has four

performance levels: PR 120+, PR 150+, PR 166+ and PR 200+.

The chip was designed by Cyrix and is manufactured by IBM.

The architecture of the 6x86 is more advanced than that of the

Pentium, incorporating some of the features of Intel's

Pentium Pro. At a given clock rate it executes most code

more quickly than a Pentium would. However, its FPU is

considerably less efficient than Intel's.

IBM FAQ,

Cyrix FAQ.

(1997-05-26)