🚀 go-pugleaf

 >> Can anyone here explain (in a simple
 >> manner) what the 486SX is? Whats is the difference
 > to the 386?
 > >
 > It's just a 486 without the built-in floating point unit.
 > JB
 >
 >
 
Actually, the skinny I've heard is that there are problems with the yields of 
the 486 processors with the built in co-processors.  So
Intel came up with the neat idea of being able to disable the co-processor and 
sell the result as a 486sx.
 
In actuality, the co-processor does not lend a whole lot of speed to most 
applications.  E.G.
 
Lets say an application is 10% floating point intensive.  Let say
the coprocessor can speed up that portion 10X.  The result is that
with the co-processor it runs in 91% of the time, for a total savings
of 9%.