As best I can determine the Raptor is a SATA 1.5 (150) and the Seagate is
SATA 3(300) which means that the max transfer rate between the drive and the
PC with the Seagate is twice what is it is with the WD raptor.
Also the number of platters, the number of cylinders per platter and the
number of sectors per cylinder(track) can vary be varied by the drive
manufacturer for drives with the same rated capacity which is why you do not
see these numbers show up in the drive model specs. For example a drive
manufacture may make a 450 GB drive with 3 platters holding 150 GB each or
with one newer designed platter holding 450GB.
"Daniel" <noone@xxxxxx> wrote in message
> both are SATA drives, I really do not know how to find out if they are
> SATA 300
> The drives are
> C: WDC WD1500ADFD 00NLR5
> D: ST 3500830AS, does that mean anything.
> In Intel Matrix Storage control it lists the C: WDC drive as
> ATA Transfer mode: Generation 1
> and the D: Seagate as
> ATA Transfer mode: Generation 2
> But I have no idea what that refers to, but it worries me because it is
> "Curious" <spammenot@xxxxxx> wrote in message
>> Are they both SATA 300 drives?
>> Without knowing the details of the Avg Transfer Rate test it is hard to
>> determine why C does not do as much better then D as it does in the other
>> two tests which appear to definitely able to take advantage of the faster
>> "Daniel" <noone@xxxxxx> wrote in message
>>> I have a PC with Vista Ultimate, 2.66 CPU and 3 Gb RAM, the PC has two
>>> hard drives C: and D:
>>> The C: drive is a Raptor 150Gb 10,000 RPM drive and the D: drive is a
>>> Seagate 500 Gb 7,200 RPM.
>>> I do not believe I am getting the performance speed I should from the
>>> faster C: drive
>>> Comparative speeds are
>>> Avg Transfer Rate - C: 71.0 MB/sec - D: 62.8 MB/sec
>>> Access Time - C: 8.5 ms - D: 13.6 ms
>>> Burst rate - C: 85.7 MB/sec - D: 102.9 MB/sec
>>> Would anyone with knowledge of how Hard Drives are meant to work please
>>> comment on these figures, would you say I had a problem.
>>> Thanks for any help and advice