People have been telling me not to buy a HD with ATA133 because I will not see any gains in performance. Is this true? Is it better to go with a ATA100 HD instead of spending the extra $$$ on an ATA133 HD?
ATA133 a lie?
- Thread starter ddasilva99
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Dulanic
Diamond Member
- Oct 27, 2000
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ATA133 wont gain you any speed is true because IDE HDs cant even top a 66MB/sec read speed... so why need 133MB/sec. However ATA133 doesnt really cost anymore then ATA100... I could care less if its ATA100 or ATA133 I just buy which ever HD I want to buy.
The biggest benefit of an ATA133 controller was that they were designed with large HDs (> 130GB) in mind, but in terms of actual perf ATA133 is much the same as AGP8x, it isn't a lie, the extra bandwidth is there it's simply just double what any device can utilise and hence no faster. Now USB2 is a std where any USB2 device will gain a huge boost in speed. PCs and the components are being marketed more and more heavily, never before have so many people been buying technical stuff they know nothing about and big sounding numbers (like Rad9000 or GF4MX) are what sell.
more like, do not buy a hard drive based on it's ATA spec.
ATA/133 gives no gains over ATA/100
for instance... Maxtor D740X ATA/133 is slower than Western Digital 800JB or 1000JB or any "JB" drives at ATA/100 spec, because it has 8MB cache instead of 2, and other unknown reasons why the drive is just faster, better seek times and such..
the moral of the story is. dont buy your drive based on ATA rating.
Maxtor is the only company producing ATA133 drives, everyone else is only producing ATA100 and will never release an ATA133 drive. So when you are choosing between 133 and 100, in essence you are choosing between Maxtor and everybody else. The ATA spec should not factor into the decision as it has little bearing on the performance of the drive.
does that go for the ide cables as well. are they all basicly the same or is there a difference between an older ata33/66 and the newer ata100/133 cables.
Sorry to let you down here but there wont be any speed improvement w/ SATA either... again, all SATA is is a connectivity standard and has no bearing on the actual performance of the drive itself. About the only speed gains you will see from SATA itself is that maybe you wont get the performance hit when having 2 drives on one channel trying to get accessed at once...
PrinceXizor
Platinum Member
- Oct 4, 2002
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Hmm...I know that there is no gain from SATA now...but I thought that was because compatability is all based on an onboard MB chip right now so the bandwidth is limited. When SATA becomes integrated into the chipset and has access to larger bandwidth there should be performance enhancments....or am I misguided Of course, there will still need to be hardware designed to take advantage of said opportunity.
Of course, there will still need to be hardware designed to take advantage of said opportunity.AFAIK yes there is a difference, and the standard is usually printed on the cables somewhere. I'm 75% sure there's a difference at least between ATA66 & ATA100, not so confident of a difference between ATA100 & ATA133 cables, though I think so. Note ATA100, ATA66, PIO etc will work on a ATA133 cable, Just not the other way around.
I think the biggest problem is that no current drives get close to utilising the full bandwidth of ATA100 making the beandwidth pretty mute. The technology is more in the drive itself than the interface.No ATA drives, heck no drives at all, can come close to filling the bandwith provided by ATA100/133 or even SATA(150mb/s i think?). You see the issue here is the drives... the connectivity can be whatever it wants, hell I can have a connection that has a max bandwith of say 2gb/s but when I have a drive that only spits out 50mb/s then it doesnt matter. I wouldnt see any benefit, or penalty, for moving from 2gb/s to 100mb/s to 75mb/s and so on. The only time that it may come into play is if I have more than one drive. Anyway, all SATA gives you, in the end, is added bandwith and until drives catch up in performance you will not notice any performance boost.
<edit>
just realised that AnAndAustin and I said almost the same thing... heck so did a lot of other people in this thread...
I guess it is the most important thing to remember when thinking about the differences of ATA100, ATA133, SATA, etc...
</edit>
<edit>
just realised that AnAndAustin and I said almost the same thing... heck so did a lot of other people in this thread...
I guess it is the most important thing to remember when thinking about the differences of ATA100, ATA133, SATA, etc...
</edit>
The ata-66 cable uses more wire 80. So if you look at it the wiring will look really skinny compared to ata-33 cable. ata66-133 all use the 80wire cable.
Originally posted by: ragiepew
No ATA drives, heck no drives at all, can come close to filling the bandwith provided by ATA100/133 or even SATA(150mb/s i think?). You see the issue here is the drives... the connectivity can be whatever it wants, hell I can have a connection that has a max bandwith of say 2gb/s but when I have a drive that only spits out 50mb/s then it doesnt matter. I wouldnt see any benefit, or penalty, for moving from 2gb/s to 100mb/s to 75mb/s and so on. The only time that it may come into play is if I have more than one drive. Anyway, all SATA gives you, in the end, is added bandwith and until drives catch up in performance you will not notice any performance boost.
<edit>
just realised that AnAndAustin and I said almost the same thing... heck so did a lot of other people in this thread...
I guess it is the most important thing to remember when thinking about the differences of ATA100, ATA133, SATA, etc...
</edit>
PCI bus is a huge bottleneck as well.....mobos are supposed to be coming up with passthroughs soon. And yah, SATA will just provide 17 mb/s more bandwidth that can't be used. One recent review showed an IDE drive with SATA adapters performed as well and better in some cases than a true SATA drive. (Digit-life IIRC).
Chiz
nice... didnt know about the SATA v. ATA comparo... anyway, you are right about the PCI thing tho... slap some HyT on that mofo .
.Wow, I only saw one reply about the system bus and I've seen it on tech TV that until they release a 66MHZ PCI bus for the desktop pc, we will not see speed increases. Some server boards have 66MHZ pci bus but most servers use SCSI drives.
I was also under the impression that although you may not get a speed increase with ATA 100/133, you do get a good burst of data to flood the PCI bus.
I have no authority to quote except the people on TechTV when they did an ATA Hard drive review.
Anyone with any hard knowledge would be appreciated.
Curley
I was also under the impression that although you may not get a speed increase with ATA 100/133, you do get a good burst of data to flood the PCI bus.
I have no authority to quote except the people on TechTV when they did an ATA Hard drive review.
Anyone with any hard knowledge would be appreciated.
Curley
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