LanWaker said:
I just got my 12g Baracude 7200 SATA and i'm wondering if i will see a difference with the IDE version?!?!
I'm planning to buy another one before the end of the year, and go raid that's why I choose SATA...
http://storagereview.com/articles/200309/20030904WD2500JD_1.html
"The furious pace of ATA capacity innovation has slowed into a sedate period where the most significant announcements center around previously-released models retrofitted for the serial ATA interface."
"One such drive is Western Digital's Caviar WD2500JD. To ease their entry into the SATA market, WD (like Maxtor) has opted to incorporate PATA-to-SATA bridge chips on their latest lineup."
"Some readers have expressed concern with drives such as the WD2500JD that utilize PATA-SATA bridge chips rather than incorporating a "native" design as, say, Seagate's drives do. Converters usually exact a performance penalty- the concern is, how much?"
Seeing that bit about Seagate made me take a look around for some of those drives to see if they're any better.
http://storagereview.com/articles/200306/20030615ST3160023A_1.html
"With the serial ATA 'Cuda V, Seagate finally debuted a drive featuring an 8-megabyte buffer as well as the only drive to eschew a PATA-to-SATA bridge. While this first attempt exhibited some improvement over the standard parallel ATA (2-meg) unit, the SATA Barracuda nonetheless trailed WD's and Hitachi's disks by a significant margin."
Check out the benches on the SATA and ATA versions of the same Seagate drive
here.
As you can see, SATA drives that are not "true" SATA drives do not offer any performance benefit other than taking some overhead off of the CPU by running through the SATA controller.