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Intel: How accurate is the Early Power Estimator (EPE) for power estimation? Can you estimate a value close to the actual machine?

Category: Power consumption
Tools: Quartus® II
device:-


Early Power Estimator (EPE) excel sheet for estimating power consumption is approximately ±30% of the actual device using toggle rate information contained in a VCD (Value Change Dump) file obtained from gate-level simulation. is the accuracy of
In addition to toggle rate information, the key to improving accuracy is how accurately the design resource information (number of registers, clock frequency, I/O standard information, etc.) is input to the EPE.
Before the design is completed or when the specifications are still being created, EPE will be used. If the development has progressed to the stage where the information (SDC file) can be compiled by Quartus II, you can use the Quartus II power analysis tool PowerPlay Power Analyzer (PPPA) for more accurate power estimation. increase.
PPPA is about ±20% accuracy of the real device when using VCD files from gate-level simulations.

For information on the PowerPlay Power Analyzer, please refer to the document below.
https://www.altera.com/en_US/pdfs/literature/hb/qts/qts_qii5v3.pdf
(Described in "8. PowerPlay Power Analysis".)

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