Real-world difference between ATA/66 and ATA/100?

yellowperil

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Jan 17, 2000
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For my next system, should I get a ATA/100 HDD or keep my current ATA/66 one? Current drive is a Quantum Fireball LP 30GB 7200RPM
 

HannibalX

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May 12, 2000
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I went from at 33 to 66 and noticed a big change, but I didn't notice anything going from 66 to 100.
 

smp

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Dec 6, 2000
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I think that the maximum amount of bandwidth that ide can do is something like 35 mg ... I'm not totally sure, someone want to clarify?
 

TunaBoo

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May 6, 2001
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<< I think that the maximum amount of bandwidth that ide can do is something like 35 mg ... I'm not totally sure, someone want to clarify? >>



Most IDE hard drives won't have sustained reads higher than 35 or 40 megs a sec. (I think my IBM 60GXP gets 39 MB/Sec).

The diff is your burst speed will be higher on ATA 100. I say it would be worth like $20 to me to go ata 100 over 66, but not any more ;) It makes my system a tiny tiny tiny bit more responsive, and leave me room for faster drives in the future.
 

4824guy

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Oct 9, 1999
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There will be no performace gain that you will notice, feel , or see between ata66 and ata100.
 

drewski

Golden Member
Mar 29, 2001
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I wouldn't get a new HDD just to replace the ata66 drive you have now.

If you're going to get a new disk for more space, i'd go for the ata100. Prices between the ata66 &amp; 100's seem to be minimal (just like the real world performance gains)
 

PliotronX

Diamond Member
Oct 17, 1999
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The only time that the maximum bandwidth of ATA66/100 is utilized is when the HDs' cache is accessed/transferred. This means no noticeable increase in performance, but it may seem a bit more responsive overall.
 

Abel007

Platinum Member
Jun 12, 2001
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None. HDDs are having a hard enough time filling 33MB/sec right now. They can burst for more but substained is not that high. ATA/66 is just as good as ATA/100 for today. Tomm might be a different story.
 

TunaBoo

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May 6, 2001
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The point is if you need a new HD for more space get a ata 100. Dont buy one to upgrade and throw away your ata 66.