-
an EC060 clocked at 75/80mhz probably 
would be similar during FPU intensive calcs 
as a full '040@40mhz. I
WHAT 



?
Even CF-CPUs (without FPU) are outperfomed by a lousy 68882,
and those beasts run at up to 200mhz.
Floating-point done in Integer is atleast 10 times slower 
than done with a FPU in the same range, so when you want to
do anything that uses the FPU, I would advice you to stay
with the 040 or get a real 060.