I have a certain budget for ordering a couple of new servers from a vendor. The new servers will run Windows Server 2008/IIS 7 with a lot of web sites (ASP.NET and classic ASP). They don't have to run SQL Server or any other database software. All databases are on other, dedicated servers.
The servers will have 24 GB of RAM, but I'm not sure about the CPUs. What configuration would you chose between these two CPU options (both have four cores) and why: