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Editing microprocessor performance
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− | Although in theory, the best performance can be achieved through very [[clock speed|high frequency]] and very high [[IPC]], in practice the design requirements for the two are largely contradictory. Achieving higher IPC requires higher logic circuit complexity. This significantly reduces the working frequency range. Likewise, by reducing the logic circuitry complexity, it's possible to increases the frequency at expense of the IPC. Both knobs are also affected by the [[process technology]] that is used to manufacture the design. In general, smaller nodes allows for slightly more complexity without regressing frequency (the exact impact is very node-dependent). Thus achieving a good performance requires a good balance between IPC, frequency, and the instruction count. | + | Although in theory, the best performance can be achieved through very [[clock speed|high frequency]] and very high [[IPC]], in practice the design requirements for the two are largely contradictory. Achieving very higher IPC requires higher logic circuit complexity. This significantly reduces the working frequency range. Likewise, by reducing the logic circuitry complexity, it's possible to increases the frequency at expense of the IPC. Both knobs are also affected by the [[process technology]] that is used to manufacture the design. In general, smaller nodes allows for slightly more complexity without regressing frequency (the exact impact is very node-dependent). Thus achieving a good performance requires a good balance between IPC, frequency, and the instruction count. |