How come 500gig WD blue has faster specs than 640gig WD black ???

WDblue 500gig

http://www.newegg.com/Product/Product.aspx?Item=N82E16822136760


vs


WD 640gig black

http://www.newegg.com/Product/Product.aspx?Item=N82E16822136805


How I see it is that the black is larger (640gig vs 500gig) larger 64mb cache, and black version is more performance and enthusiast oriented.

BUT....

Average Seek Time: Black
11ms
vs

Average Seek Time: BLUE
8.9ms


hmmmm...

What would you do?

Price is not much more for the black
3 answers Last reply
More about 500gig blue faster specs 640gig black
  1. The first one has only one platter with higher density. The Samsung Spinpoint F3 HD502HJ 500GB is better though.
  2. so single platter is better than a dual platter?
  3. whats better performance?

    640gig Black WD single drive

    vs

    2 x 500 gig Seagate or WDblue in RAID 0

    vs

    1TB single drive (or 1.5TB single drive)

    vs

    2 x 640gig WD black in RAID 0

    ????
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