Dell PowerEdge R820 - Manual (Page 20)

Performance Analysis of HPC Applications on Several Dell PowerEdge 12 th Generation Servers
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wattage processors and the lower DIMM configuration on the PowerEdge M420 contribute to the lower
power consumption.
HPL performance/Watt Figure 12.
LU performance/Watt Figure 13.
Figure 13 plots the energy efficiency of the three clusters when executing the LU benchmark. The
observation is that the PowerEdge M620 cluster and the PowerEdge M420 cluster have similar energy
efficiencies. The differences in the values are within the statistical variation. The PowerEdge R820
1.04
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M620-2.7GHz-256c R820-2.7GHz-128c M420-2.3GHz-512c
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M620-2.7GHz-256c R820-2.7GHz-128c M420-2.3GHz-512c
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