The cache doesn't make a difference when you are talking about such a speed difference 233 compared to the 466.
The 466a Celeron will beat it any day of the week(and like they said, you can probably get a bit more out of it with an overclock).
If it was closer, say a P2 400 or 450, then it would be alot closer for the P2 but with the overclock the 466 celeron would still come out better to the stock P2.