What Mac Pro is it (model, year, quad/octo)? What are you going to use it for?
The difference will be immense, you need to consider the GPU, hard drives, expendability and memory in addition to CPU.
Garen
Just imagine editing a HD video with all cores fired up for an hour or more. I wouldn't expose my MBP to such conditions and neither should anyone else.
I do that, playing wow gets it to run hotter and louder.
should not? haha. why did you waste money on a MacBook PRO if your just going to have it display webpages? - might as well have a got some $400 netbook and installed os x on it.
I agree with you but and this is a big BUT, I didn't buy my MP and MBP to play games as you know you can buy a gaming unit/consul for a faction of a cost of MP or MBP. I do subject my MBP to extreme conditions if I have to, and I'm so happy it delivers when needed. My point is MP has its place and MBP has hers we just need to optimize our time and the performance of the unit that we have for the given task.
Garen