Nope, but is also dependant
Comparing a Pentium 3 1.0 ghz to a 1.3ghz celeron (p4 artechture), the Pentium 3 wins by far. To beat out a 1ghz Pentium 3, you would need at least a 1.4ghz pentium 4.
Pentium 3's, like AMD processors, do alot more per mhz.