Dell POWEREDGE M915 - Manual (Page 16)

Power Efficiency Comparison of the Dell PowerEdge M915 and HP ProLiant BL680c G7 Blade Solutions
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Price to Power Efficiency Ratio
Table 2 and Table 3Table 3 detail the price for both solutions including the blades, blade enclosures, chassis
controller modules, I/O modules, and power supplies necessary for the testing.
Table 2: Dell Blade Solution Cost Breakdown 9
Dell Blade Solution Qty Each Total
PowerEdge M915 blades 8 $13,338.00 $106,704.00
M1000e Modular Blade Enclosure 1 $9,701.00 $9,701.00
Dell Total Cost $116,405.00
Percent less cost for the Dell Solution 21%
SPECpower_ssj2008 Overall ssj_ops / watt
2,425
Dell Solution $ / ssj_ops / watt $48.00
Dell Percent less $ / ssj_ops / watt 59%
Table 3: HP Blade Solution Cost Breakdown 10
HP Blade Solution Qty Each Total
ProLiant BL680c G7 blades 4 $34,495.00 $137,980.00
BladeSystem c7000 Enclosure 1 $10,123.00 $10,123.00
HP Total Cost $148,103.00
SPECpower_ssj2008 Overall ssj_ops / watt 1,260
HP Solution $ / ssj_ops / watt $117.54
The lower cost and higher power efficiency of the Dell solution lead to a cost of just $48.00 for each point of
overall SPECpower_ssj2008 score, 59% less than the $117.54 per point of overall SPECpower_ssj2008 score with
the HP solution.
11
9 M915 and M1000e prices in U.S. dollars from Dell.com, June 14, 2011
10 BL680c G7 and C7000 prices in U.S. dollars from HP authorized reseller, June 14, 2011
11 The 8-node M915 achieved 14,982,232 ssj_ops@100% target load and a SPECpower_ssj2008 result of 2,425 overall ssj_ops/Watt,
compared to the 4-node BL680c G7 with 7,996,829 ssj_ops@100% target load and a SPECpower_ssj2008 result of 1,260 overall
ssj_ops/Watt.