Re: Techies question: Which IIS server is more powerful?
In case not every reader notices, that price is per month as this is a dedicated server rental deal.
I'm not 100% up on the current processers, either, but I searched and read a bit and don't see a major difference between the two. Each has a dual core processor with 2MB per core L2 cache. Xeons are more geared toward servers, so I would probably go with the Xeon even if I'm not immediately sure why it might be better.
The Pentium D option above has a faster clock speed, but you're almost never CPU-bound on a web server. And under SQL server you'll hit RAM issues before hitting CPU issues.
That reminds me, I'm not sure but I'm betting the Xeon can go over 4 GB of RAM if you have the option of upgrading in the future where the Pentium D probably can't. I'm basing this on the AMD processor lines where none of the Athlon 64 motherboards support > 4GB but the Opteron motherboards generally do.