![]() The SATA 6 Gbps interface does not matter since neither drives will come close to saturating the SATA 3 Gbps interface. But it's not as good a buy as the WD20EARS, especially if the WD20EARS is faster and cheaper. I'm not saying that the WD20EARX is a bad drive. That means we want lower power consumption and thermal dissipation, but we also want better performance. But is that what we want? Frankly speaking - we want our cake and eat it too. If we are only interested in lower power consumption, then it would make sense to buy ever slower hard disk drives. The conclusion also mentioned "it has the indirect benefit of a lower thermal output", so yes, we acknowledged that it had a lower power consumption and thermal output. The slightly lower power consumption is likely due to the slower spindle speed. ![]() Click to expand.Not sure if WD improved on the WD20EARX recently, but when we received our review sample, it had the following power consumption figures, as stated in the review :
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