Computer Nerd Question

[gaming_mouse]

I'm getting a new computer with essentially the single goal of fast computing power. One thing I'll be doing with it is performing complex queries on PT databases.

Theoretically, which will be faster:

2G of RAM and a 2GHz CPU

OR

1G of RAM and a 3.2 GHz CPU

I'd also appreciate an explanation of any other factors that come into play, and the reasons behind your answer. Nothing too fancy, but just the broadstrokes on how the parts of a computer interact to determine speed.

Thanks,
gm