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PCMark 7 And Power Consumption

Ten 60 GB SandForce-Based Boot Drives, Rounded-Up
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PCMark 7

Samsung’s 64 GB 830 jumps to the top of our PCMark 7 chart, followed by Crucial's 64 GB m4.

The SandForce-based drives don't do as well since this test consists of both compressible and incompressible information. The resulting workload isn't a best-case reflection of what its controller hardware can do. We do, however, see a very clear break between the drives with synchronous memory and the less expensive models equipped with asynchronous flash. On average, the faster SandForce-based SSDs deliver about 8.5% more performance than the more value-oriented models.

Power Consumption

Because SSDs are so fast, they sit idle most of the time. In our almost 30-minute virus scan, the SSD is only busy for 281 seconds. As a result, idle power consumption is the most important figure to consider in a desktop environment.

Samsung's 64 GB 830 does exceptionally well here. Even though it employs a beefy triple-core ARM-based controller, it consumes slightly less power than Crucial's m4 and its dual-core ARM-based Marvell controller.

When it comes to the SandForce-based drives, our results are less consistent than we might have expected. Though, with all of these sub-1 W measurements, we're not certain any of these SSDs can claim an advantage.

Samsung continues to excel, even under more of a load. Its 64 GB 830 uses less power when it's active than Intel's SSD 520 at idle. Crucial's m4 takes a second-place finish, which is interesting in light of its less impressive finish in the idle chart. 

There's again some variation between the SandForce-based drives, with no discernible trend in the finishing order. But we're still hesitant to flag a victor, given a fairly narrow range.

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