From owner-chemistry@ccl.net Sat Aug 20 17:42:01 2011
From: "Adel El-azhary azhary*ksu.edu.sa" <owner-chemistry]*[server.ccl.net>
To: CCL
Subject: CCL:G: AMD Opteron vs. Intel Xeon processors
Message-Id: <-45303-110820173559-24405-AvL1uvvrFpGm3f0cBUM5GQ]*[server.ccl.net>
X-Original-From: "Adel  El-azhary" <azhary^^^ksu.edu.sa>
Date: Sat, 20 Aug 2011 17:35:56 -0400


Sent to CCL by: "Adel  El-azhary" [azhary a ksu.edu.sa]

Dear CCl members,

We are interested to buy a server. We have the choice between two systems. One has the AMD Opteron processor, 12 core, and the other has Intel Xeon processor, 10 core. The AMD system is cheaper by about 33%. Does anyone has experience which one to choose. I know that this question has been asked before but about a year ago and probably things have changed.

Another related question. We have the binary code of the Gaussian program, the Intel EM64T-based systems version which runs on the Intel Xeon processor. Will this version run of the AMD Opteron system. 

The two processors are
2x AMD Opteron 6172, 12C, 2.1GHz, 12x512K L2/12M L3 Cache, 80W ACP, DDR3-1333MHz

2x Intel Xeon E7-4850, 10C, 2.00GHz, 24M Cache, 6.40GT/s, 130W TDP, Turbo, HT, DDR3-1066MHz

Adel El-Azhary
King Saud University
Saudi Arabia