Math chip
Albert,
Funny you should ask that! I just replaced my 68881 with a 25 MHz
68882. I ran a few tests with Imagine and came up with the following:
Running the 68882 at 14 MHz reduced my rendering times by about
25%.
Running the 68882 at 25 MHz reduced rendering times by anywhere
from 33% to 41% (again, when compared with a 14 MHz 68881).
To give you some real numbers, I rendered a 1/4 screen HAM image of
a glass. In unaccelerated mode it took 2:43:17 (hh:mm:ss). Using the 14 MHz
68881 took 00:38:02. Using the 25 Mhz 68882 took 00:22:25.
Does this answer your question?
Robert Fisher