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Benchmark Results: Power Consumption

OCZ's Vertex 3: Second-Generation SandForce For The Masses
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Our benchmark configuration still consists of a smart battery that allows us to measure DC power consumption on the +5 V and +12 V power rails. The next configuration isn't quite ready yet. However, it will allow us to also measure the +3.3 V rail, which means we will be able to compare the VelociRaptor.

The power consumption results for the Vertex 3 line up with our expectations. OCZ claims it turned up performance a bit, which we saw  in the preceding benchmarks. As a result, our benchmark confirms a slightly more aggressive use of power.

Even though our results show that the Vertex 3 consumes more power than the Seagate's Momentus, we have to take time into account. A disk-based drive will always consume more power absolutely. At the system level, a SSD will increase power consumption because CPU and memory utilization rises in response to improved I/O activity (they're not sitting there, waiting on a hard drive to send data). But remember that a SSD-based configuration will always finish those operations faster. At the end of the day, a SSD lowers power consumption.

PCMark Vantage (x64)
HDD Suite
Average
Power Rating (W)
Actual
Power Used (mW)
Average
CPU utilization (%)
Completion Time (mm:ss)
Kingston SSDNow 100 V+
0.68514.78:06
OCZ Agility 2
1.418610.97:54
Intel X25-M
1.424210.810:17
OCZ Vertex 3 Pro
1.620715.17:41
OCZ Vertex 2
1.926913.98:28
Seagate Momentus 5400.6
2.242610.411:40
OCZ Vertex 3
2.3
305
15.1
7:50
G.Skill SATA II FM-25S2S-64GB
2.636913.58:40
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