Hey, I'm pretty new with servers, and I plan to rent one in the future, but my main concern is speed.

Which makes the biggest difference? The bandwidth or processor speed.

Please give me details.

Thanks, all responses would be appreciated.

I would go for more bandwidth over a faster server. Servers are outdated quickly and it seems the only thing that would slow down our servers are the server side scripting. If you don't have a lot of Server side scripting I would go for bandwidth.

Bandwidth is easier to brag about on your home page, it doesn't get outdated as quickly as the latest processors.;)