Any noticeable difference between ATA 33 and ATA 100?

[Coki]

I have a HD that works at ATA 100 but my motherboard can only do ATA 33.

Will there be any speed increase if I buy a Controller Card that will make my HD use it's ATA 100 capabilities?

Are all these HD controllers the same. Some are X brand for like 15 and some like PROMISE for $25-30. Are there any benfits to pyaing more for them?

Thanks.

 

[Viperoni]

What HD is it?
I doubt you'll see much of an increase, only if you're running ultra fast HD's in Raid0 maybe.

 

[loosbrew]

????? if youre using an ata100 on an ata33 controller, you will defintely notice a huge difference in performance once you get it on a ata 100 controller. trust me on this one!

loosbrew

 

[bacillus]

you will notice some difference! the IBM75 GXP can sustain 37 Mb/sec on its outer edge which would be impossible to acheive with a m/board ide ATA33 controller which limits sustained transfers to 33Mb/sec!

 

[gcliv]

Heck yes! My parents ATA33 7200 RPM HDD crawls and is a total system bottleneck compared to my ATA100 7200 RPM drive. Still want SCSI tho...

 

[Coki]

Thanks for the info.

 

[Noriaki]

well the faster IDE drives can sustain about 37MB/s....so it's not that big of a deal if you limit it to 33 as long as it's got no slave device...

But also newer controllers are probably more effecient as well...I'd spend the $25 and get a promise Ultra100...



<< My parents ATA33 7200 RPM HDD crawls and is a total system bottleneck compared to my ATA100 7200 RPM drive >>

Be careful there though...there are more parameters than just ATAxxx and xxxx RPM to determine a drive speed. A first generation 11ms seek time, 1MB cache, 5gig/platter drive would get it's ass worked by a 8.5ms seek time, 2mB cache, 15gig/platter drive even if they were both 7200rpm, and ATAxxx would make no difference.

 

[BigLance]

I noticed difference from UDMA/66 to 100, however that was due to the RPM difference and drive difference. But from ATA33 to 100, YES ! Faster.

 

[Mday]

btw, HDDs are a bottleneck.