As in the years before, the new Winstone 99 shows different results to its predecessor when you compare different CPU-architectures. Whilst AMD's K6-2 was performing very well vs. Pentium II in Winstone 98, it now dropped a bit in Winstone 99.
This is the chart containing only the 'unoverclocked' CPUs. You can see that Celeron sticks up very well.
Including all overclocked CPUs makes the chart a lot larger, but not really much different. AMD's K6-2 400 is somewhere between Pentium II 333 and Celeron 366. Please realize that you might not be able to reach all those numbers anymore when Intel introduces the overclock-protection in all of their chips.