Originally posted by: biggiesmallz
So let me get this straight. We cannot fully utilize bandwdth of ata133 but people buy the faster higher costing sata? Why?
And how many years are we away from being able to fully utilize ata100/133?
Lots of answers.
1. Nobody is upgrading just for SATA. When you build a computer, you're usually buying a motherboard, based on a chipset, and the hard disk interface is a feature of that chipset. One feature among many. You can't just go ala carte and say "Hey, I want a nf4 motherboard, but I don't want SATA, please remove that feature and credit my account $1".
2. Speed of interface is the least of the benefits, imho. Think of the other benefits: a) better cabling method, b) no more slave/master stuff, c) advanced features being added to SATA that won't find their way into ATA/EIDE.
3. The speed of ATA is irrelevant. As long as we can only put two drives on a controller port with ATA, the speed of the interface won't be a bottleneck. That is assuming drive technology doesn't make some quantum leap that just happens to be backwards compatible with ATA.
4. You're not choosing between ATA and SATA. You're choosing, in most cases, to have both options. A benefit of having both options is usually the benefit of supporting more drives. I have 6 hard drives and 2 optical drives in my computer, without having to add a controller board to the mix. Could I have done that on a non-server board in the ATA only days? NO.
5. At the moment, there are SATA drives that are 10,000rpm, while there are no ATA drives that are 10,000rpm. People who want the (usually)increased performance of a 10,000rpm drive have to go either SATA or USCSI to get it. Needless to say, SATA is much, much, much cheaper than USCSI.