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How much faster is a 10000rpm than 7200rpm HDD?

Discussion in 'Building a new PC' started by Knuck1ez, Jun 2, 2009.

  1. Knuck1ez

    Knuck1ez Regular member

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    How much faster is a 10000rpm than 7200rpm HDD? I know its about 2800rpm faster but what exactly is that in seconds. Im thinking about getting a 74gb raptor but dont know how much faster it would really be. Sound and heat arent problems... just money and if it'll be well spent or not.
     
  2. KillerBug

    KillerBug Active member

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    Alot of it depends on the conditions. Under some situations, a 7200 RPM 1TB will be faster than a 10000RPM 74GB.

    A the 1TB drive will transfer large files faster, while the 74GB will start transfers faster (this results in faster transfer of small files).

    The average latency on the Raptor 74GB is 3ms, while the average for the 1TB seagate 7200rpm is 4.16ms. Becuase of this, if a file takes less than 0.005 (aproximately) seconds to transfer, it will transfer faster with the raptor. This seams like it would be of little use, but it can help a lot with operating systems & games, as these typicaly have lots of little files.

    [edit]
    When used in RAID-0, RAID-5, RAID-6, RAID-50, RAID-10, or any other raid that uses stripes, higher RPM drives make a much more noticable improvement over low RPM drives thanks to the fact that stripes are small (usualy less than 512K).
     
    Last edited: Jun 2, 2009
  3. sammorris

    sammorris Senior member

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    Depends which 7200 and 10k drive. Any 7200 drive up until 2008 will be substantially beaten by pretty much any 10k drive. However, latter 7200rpm drives like the Samsung F1 and Caviar Black have very high read rates which means for processing large files they are faster than the smaller drives. Since the 37,74 and faster 150GB raptors, however, the Velociraptor has come out, which is still ahead of even the best 7200rpm drives in this department. Something ALL 10k drives do better than 7200 drives regardless, however, is access time. This makes reading large numbers of smaller files faster, the most common example of which is loading an OS (this has an effect in certain games but not many).

    In general, I would avoid recommending RAID to anyone who does not have any experience with the technology.
     
  4. Knuck1ez

    Knuck1ez Regular member

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  5. sammorris

    sammorris Senior member

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    THE WD 1TB? There are five of them remember...
     
  6. KillerBug

    KillerBug Active member

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    How else might one get experience with raid?
     
  7. sammorris

    sammorris Senior member

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    I do not mean first-hand experience, I mean knowledge of how it works, all the drawbacks and risks.
     
  8. Knuck1ez

    Knuck1ez Regular member

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  9. sammorris

    sammorris Senior member

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    Well, that's a 5400rpm drive designed for low power usage. As it happens, the PC I'm typing to you on uses this exact drive as an OS drive. It runs alright, it's not especially quick but it's perfectly accceptable, it boots XP a hell of a lot quicker than my Raptor boots Vista (though that's because Vista is 32GB in size, and it's only a 37GB drive, so brimmed, and I had to put my page file on a separate drive)
     
  10. Knuck1ez

    Knuck1ez Regular member

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    5400rpm.....Grrr....I wish they would tell you that on newegg.. anyways, would a raptor be neccissary then? I would use a ton of programs including Games, photoshop, and music production software...
    im thinking on a 74gb
     
    Last edited: Jun 3, 2009
  11. sammorris

    sammorris Senior member

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    The 74GB Raptors are old and slow by normal comparison. A Velociraptor is your best 10k option, if you don't want one, you may as well buy a Caviar Black instead.
     
  12. Knuck1ez

    Knuck1ez Regular member

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    I know their good but compared to 5400rpm... I need some speed. This is gonna be my main computer for everything I do. the caviar blacks are good but wouldnt the old raptor still be faster? The veloci's cost too much and I dont need the whole 150GB of space. 74 would be enough. I saw one for 65$ with shipping
     
  13. Knuck1ez

    Knuck1ez Regular member

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    One more question cause Ive been hearing that Raptors sometimes die fast. If my OS is installed on it and it dies, would I have to format my 1TB drive to reinstall my os?
     
  14. Tap_paT

    Tap_paT Member

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    If you keep your HDs cool you should have no problems with quick deaths.
    I use HDD health to check up on mine.
    It's found here: Panterasoft
     
    Last edited: Jun 4, 2009
  15. sammorris

    sammorris Senior member

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    I have two Raptors, both several years old, both still working. They can fail (the 150GB ones I think were the most likely) but ultimately, any HDD can fail, it's a risk with any drive.
    I don't think you'd see a huge difference between an old raptor and a caviar black, and the Black will make a quarter of the noise.
    Contrary to popular belief, heat is not a cause of premature failure of HDDs, it is design flaws and tolerances, and over-cooling. HDDs that run below about 31-32ºC all day are at as much risk of failure as HDDs that are at about 50-51ºC. Go hotter than that and you are indeed at risk, but only original Raptors and Seagates get that hot on their own, without a fan.
     
  16. Knuck1ez

    Knuck1ez Regular member

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    I just got a Load of Graduation money
    (I just finished High school today =D ) So I have the cash for a New HD, I just dont want a 5400RPM Hd as my main cause Im gonna be using it almost 24/7 and want the fastest possible. So would the Raptor 74 gb be faster than the Caviar black 160GB? Or is the velociraptor that much faster than both.

    One more thing, would 10000RPM be to much for 24/7 use? its gonna almost always be on.
     
  17. sammorris

    sammorris Senior member

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    nope, my 10k drives had heavy use and suffered no ill effects. Basically, buy either a Velociraptor if you can afford one, or a Caviar Black if you can't.
     
  18. Knuck1ez

    Knuck1ez Regular member

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    Ill probably Painfully buy a 150GB Velciraptor... Found one for 100$ brand new with shipping

    EDIT: NVM its 20$ shipping. I still thinking of a Cav Blk
    (just renamed it lol) are there any speed differences in the sizes cause Im just gonna get a 120 GB.
     
    Last edited: Jun 4, 2009
  19. sammorris

    sammorris Senior member

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    That's exceptional, where'd you find that? They should be nearly twice that much!
     
  20. Knuck1ez

    Knuck1ez Regular member

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    Last edited: Jun 4, 2009

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