Quote:
Originally Posted by Ken in Regina
Hey Bob332,
Welcome to the discussion.
When it comes to that level of performance, it's so easy to mess it up. So, if you are going to get the benefit of raw data transfer rates that 10k RPM or 15k or SSDs might provide, everything between the drive and the CPU has to also be able to take advantage. There's no point in sticking a drive with a huge data transfer rate into a device where the bus speed or memory speed are too slow or the CPU caching is too small.
Manufacturers will do exactly such dumb things: put in a super fast drive for marketing reasons and then cheap out on the mainboard components that are necessary to take advantage of the speed in order to cut the costs.
So the higher the performance claims of any particular component, the more homework we consumers need to do to make sure we will actually get some benefit from it. I have my doubts that any consumer-priced laptop would ever be able to take advantage of high performance in any of the usual components because, overall, there are compromises being made due to form factor (size/shape), battery life and cost.
Caveat emptor.
...ken...
but i would counter that the hdd is by far the slowest item in any pc setup and the latency is much more important than data transfer speed on any computer. it has only been lately that data transfer speeds have actually come close to maxing out a ata100/133/sata150 port, let alone sata300 or 600. in fact, my single drive that has the highest data transfer is a 7200 sata150 drive - it is a 250GB single platter drive, a bit old but that is all i need in that machine. in data transfer it beats out the 15k scsi by a small amount, but the latency is more than twice that of the 15k and thus the computer's overall "snappiness" factor is much less. when we get into ssds, the latency is like nothing, and things happen right after you click the mouse, plus they take nearly no power and in a laptop, to me that is big deal.
imho, i would take a 15k-ssd w/ even a hindered data transfer rate of 50MB/s over a 7200 rpm hdd that had a data transfer rate of 100MB/s strictly because for the most part, loading a program isn't loading large files, and w/ the exception of a few isolated professions, most people aren't moving 100MB-multiple GB files on a normal basis.
fwiw, in testing, i have put 15k scsi setups in old computers setups, like say a old skt 462 xp 2800 w/ 2GB of ram and for day to day stuff, it was = to the same hdd in a 3GHz dual core 4GB rig. obvioiusly when starting modeling or any type of cpu dependant useage the dual core rig would kill the xp 2800 rig. my htpc runs a 30GB ssd w/ win7 currently - before that it ran a 15k scsi drive and the difference is night and day strictly due to the ssds lack of latency. fwiw, the htpc is connected to the home lan and all video is on the home server.
i am however waiting a bit for prices to come down on the current ssds as i need at least 80GB, preferrabley 120GB of so for my laptop - hopefully around christmas time.