Performance comparison between computer systems based on 64 bit CPU:Opteron vs. Xeon
Jingqiu Chen · Computer Engineering and Applications Journal · 2007
The 64 bit processors,AMD Opteron and Intel EM64T Xeon,are widely adopted in present deployed computer server.Opteron and Xeon are vastly different in their CPU frequency,memory and I/O subsystem etc.,which results in the different characteristics of Opteron-based and Xeon-based systems,and the performance,therefore,relates closely with application code.To build a cluster for high-performance scientific computing,choosing the most suitable 64 bit processor for user's application is an important problem,which many users are interested in.For this purpose,the performance comparisons for applications including computational fluid dynamics(PHOENICS FLUENT),quantum chemistry(GAMESS),quantum physics(VASP),and atmospheric research numerical weather forecasts(MM5) etc.between computer systems based on AMD252(2.6 GHz) and Intel EM64T Xeon 3.6 GHz processors are conducted.