Author: Robert Hyatt
Date: 21:01:23 05/17/05
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On May 17, 2005 at 19:58:35, stuart taylor wrote: > 1). What exactly is the implications of RPM in hard disks? >a). in comparing 42000 rpm to 72000 rpm, one zero too many. :) RPM only affects rotational latency. Bandwidth is pretty much unaffected. That means that random seeks will be faster since the average latency figures in to any random I/O, which is precisely what we do for tablebase accesses, and that's why I bought 10K drives when they came out. > >b).what difference does this make to speed of computer functions, and which >computer functions does it affect? Only things where you do random I/O. Loading a program doesn't require low latency, higher bandwidth is more important. Generally, one step below the fastest RPM you can find will deliver the highest bandwidth... > >c).Does the new 915 chipset make the rpm slower? (I read that they make >something a little slower, but I couldn't understand exactly what, and if it >causes any handicap). > The disk drives spin at a constant speed, and this is not determined by anything but the motor used to spin the disk. >d).One computer salesman told me over the phone that it represents the weakness >or strength of the computer. Does he know what he's talking about? Depends on what you are doing. :) > >2).What is the difference between the proccessors from Intel Pentium Mobile >technology, if it is 730, 735, 740 till about 770 etc? > >Thanks for any answers, information or opinions. > >S.Taylor
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