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Results – Dell POWEREDGE R720 User Manual

Page 6

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Power Efficiency Comparison of the Dell PowerEdge R720 and HP ProLiant DL380p Gen8 Rack Servers

6

Results

In this like-for-like comparison, the Dell PowerEdge R720 drew less power than the HP ProLiant DL380p Gen8 at
idle, at 100% target load, and at all points between, while maintaining a slight performance advantage at 100%
target workload. This lead to the 15% lower performance/watt ratio for the DL380p Gen8.

Figure 1: Normalized SPECpower_ssj2008 results for PowerEdge R720 and ProLiant DL380p Gen8

1.00

1.00

1.00

1.00

1.07

1.10

0.99

0.85

0.00

0.20

0.40

0.60

0.80

1.00

1.20

Maximum Power Draw

(lower is better)

Idle Power Draw

(lower is better)

Maximum Performance

(higher is better)

Performance / Watt ratio

(higher is better)

Dell PowerEdge R720

HP ProLiant DL380p Gen8

Performance/Watt

ratio of the DL380p

Gen8 is 15% worse

The DL380p Gen8 consumes

7% more power at 100% load

and 10% more power at idle