On 10 Nov 2006 at 23:32, Jim Leonard wrote:
  How is that possible?  The 386 improved many
instructions to run in
 fewer clocks...
 Besides, I'd always take a 386-16 over a 286-20, because the 286-20 runs
 protected mode applications at 0MHz ;-) 
Strange, but apparently true in some cases:
http://www.intersil.com/data/an/an111.pdf
I imagine that the difference would be exaggerated even more with a
386SX.
Cheers,
Chuck