Definition of "microarchitecture" [microarchitecture]

• The detailed structure of any organ etc. at a very small scale (noun)
• The architecture of the data processing parts of a microcomputer (noun)

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• "The chips with the new innards, known as a microarchitecture, are due to be launched in the second half of this year."
• "The new chips will be part of the Westmere microarchitecture, which is a shrink of Intel's existing Nehalem microarchitecture."
• "The analyst believes that Intel's new 65nm "microarchitecture" falls a bit short of AMD's 90nm offerings."