Hello, to my mind the most impacting on a SMP server is the synchronisation time between dies/cores. the time to synchronize 2 cores on different dies is higher than the time to synchronize 2 cores on the same die. So to achieve best performances you have to limit number of dies. So a dual quad core should be more powerful than a 4 dual core. You can verify this here : http://www.spec.org/cpu2006/results/cpu2006.html results on a 2 chips server are ~20/30% higher than a 4 chips using the same processor regards, David Amiel Le Sam 1 septembre 2007 04:51, Erick Perez a écrit : > Hi people, > Do you have pointers to web documents that help me make comparisons > between buying a server with two quad core 2.33 ghz or buying a 4 dual > core 2ghz server? > I am trying to answer a question of performance. It is not important > the redundancy/failover or the price of the server. Just the > performance. > obviously all the hardware specs are the same, the question is the CPU. > > > -- > ------------------------------------------------------------ > Erick Perez > Panama Sistemas > Integradores de Telefonia IP y Soluciones Para Centros de Datos > Panama, Republica de Panama > Cel Panama. +(507) 6694-4780 > ------------------------------------------------------------ > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >