CPU speed vs multiple cores

[BloodAngel]

I think I'm running the wrong type of server, I currently have a xeon x3320 in a dedicated server. 2.5 GHZ, with 4gb ram, and I run the following:

5*11slot css war servers
2*14slot TF2 war servers
1*11slot cs war servers

Now a Dual core server with a higher cpu speed maybe 3.0GHz, e8400 or something similar, would this run the SRCDS's more Stable? Cost is also a factor with Dual cores being cheaper.

[Spartanfrog]

Considering you are running 8 servers, having four cores would be very beneficial and have better performance.

[lol554]

Dual core is best if you have 2 servers or less
Triple-, Quad- or Sixcore is better if you have more than 2