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What is the difference between high end and low end DSP chips?

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matrixofdynamism

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The difference between high end and low end microcontrollers is usually related to their databus width i.e is it 8, 16 or 32 bit. Beyond this is the maximum frequency that they may operate at. Besides this is the peripheral set that they contain e.g some microcontrollers may have built in harware for video processing.

A DSP is mainly a chip that can be used to carry out a multiply accumulate function in a highly efficient manner to implement DSP algorithms. How do low end DSP chips differ from high end ones? Excluding things like 8, 16 and 32 bit and maximum operating frequency, as far as their function as a digital signal processor is concerned, what can high end DSP chips do which low end cannot?

Are there any peripherals that are unique to DSP chips?
 

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