is it really a 750 Mhz Athlon running FreeBSD?

[Al Kelley]

at the bottom of the webpage found at

    http://www.swox.com/gmp

there is a place where the user can evaluate
an expression.  here is what it says:

   An example of a valid expression is: 
      1 + gcd(87324,78263148,7896) * (10^1989879887 mod 471!)

   GNU AND IMPROVED! NOW MUCH FASTER!
   This is computed on an 750MHz AMD Athlon running FreeBSD.

---
question:
   is this really a 750MHz AMD Athlon running FreeBSD?
   it seems way too fast for such a machine.