Anyone know a site for benchmarks?

Does anyone know where I find some benchmarks compairing an Athlon XP 3000+ Barton vs. an Athlon 64 3700+ San Diego. I am intrested in Winrar and video compression scores.

I can find individual benchmarks for the two processors, but they aren't running the same test so I can't make much out of them myself.

I am considering replacing my old XP with the newer 64 if it turns out that it can save me a significant amount of time.

Nevermind,
I found what I was looking for on tomshardwareguide.com.

Considering it's age the old XP's really hold their ground well against everything but dual core processors. I think I will hold on to my cash for now and consider a dual core once Vista arrives next year.