On Tuesday, November 12, 2002, at 01:55 PM, [EMAIL PROTECTED] wrote:
>> I have a PCI ATA 100 card and drive so I am moving the fastest I can
>> for hard drive speed so that is why I was wondering about the memory.
>
> Not exactly. You could have a 5400 RPM ATA100 drive which will not
> transfer
> data or seek as fast as a 7200 RPM ATA100 drive. Some SCSI drives are
> even
> a bit faster .
> Plus there is also ATA133.
>
> However your real bottleneck is the motherboard.
> --
> Charles Dostale
Tests I and others have run show that in an Old World Mac you will see
little or no difference between ATA/66/100 and 133 PCI cards. 32-35mb
sec seems to be the top speed no matter which card or drive you are
using. Tests looked at were at xlr8yourmac.com . I recommend that
people buy the ATA /66 card unless they are sure they will be using it
in a faster machine in the future. They are now running apox $50.00.
You are of course correct that you may see a difference in 5400 and
7200 rpm drives and that the motherboard of our machines are slower
then new ones of course. I do see a difference in bench tests but very
little difference in real world use.
My Quantum 5400 rpm ATA /66 drive tops out at apox 16mb sec
My Quantum 7200 rpm ATA/100 at 35 mb sec
Sadly to my surprise my new Seagate 7200 rpm ATA/100 tops out at 22mb
sec
seek and buffer specs are close to the same for all three.
I only notice a difference when transferring large files from one to
another. No IDE/ATA hard drive that I know of runs anywhere close to
the 66-133 specs in any machine. It seems to be a marketing gimmick at
this point. Raid setups do of course run faster.
Will S
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