Why is it slower with two processors?
Unfortunately, due to the limitation in server testing software, the benchmarks we used didn't require the power of multiple processors to operate. In turn, this causes the computer to do more than is required to which produces the slow down.
The benchmarking software that would give us the opportunity to test the SMP Opteron platform to its fullest extent costs many thousands of dollars (Ed. Note - If any company wishes to sponsor us with this type of software, you are most welcomed!). Such software also needs a minimum of 10 computers running on a network at one time which makes it quite difficult for a lot of people to test with - which is the dilemma most media faces. With all this equipment, one benchmark with the program can take over 24hrs, making testing of multiple processors very time consuming.
People who have an understanding of SMP equipment would understand why the benchmarks are slower and also understand why you would purchase such equipment. Many programs aimed at people who use their computer as a Graphics Workstation have support for multiple processors and thus make good use of the powerful technology.
While we didn't see a performance increase in dual operation at the moment with the particular benchmarks we ran, we do see what the Opteron is capable of from a gamer's perspective. The memory bandwidth is very good considering it is only running at 166 MHz and CAS 2.5.