WD Green 2TB, 64mb vs older 32mb

I was comparing the 32mb

vs the 64mb

Correct me if I'm wrong, but the 64mb uses 4k sectors and the 32mb uses 512b.

It's going in a Win 7 machine. Is there a reason to prefer one over the other? I didn't think the cache really made that much of a difference, and didn't know if the new 4k tech was better to avoid at the moment. Just wondering which to get. Just using it for storage. Thanks for any info!
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More about green 64mb older 32mb
  1. You're correct about the 4K sectors on the WD20EARS and not the WD20EADS.

    According to Western Digital's specification sheeet: http://www.wdc.com/wdproducts/library/SpecSheet/ENG/2879-701229.pdf
    ...both drives have the same sustained transfer rate and reliability rating, so I don't see any particular reason to choose one over another.

    Note that you can easily access the specs for all of WD's internal drives from their product list at:
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