A sixth-generation, 64-bit
? 80x86
?-compatible
microprocessor designed by Cyrix
? and manufactured by
IBM. 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 [data dependency removal]
?. It has a 16-
kilobyte primary
cache and is socket-compatible with the [Intel Pentium P54C]
?. It has four performance levels: PR 120+, PR 150+, PR 166+ and PR 200+.
The architecture of the 6x86 is more advanced than that of the Intel Pentium, incorporating some of the features of the [Intel 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.
This article (or an earlier version of it) contains material from FOLDOC, used with permission.
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