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Speed comparison?

Hi!

Is there any estimate on how many times faster a 80166 (20MHz)
would be compared to an 8051 (12MHz)?
I am just looking for a general estimate, not specifically looking at
this or that function's execution time.
Or, to make it easier, given a delay loop like this:

  for (i = 0; i < 10000; i++);
How many times faster would this execute on the 16 bit system?

Thanks for any help!
Holger Warzelhan

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