Speed difference between serial ATA drives and parallel ATA drives?

[pm]

I bought a new hard disk from Newegg a few days ago and I thought that I had bought an SATA Maxtor Diamondmax 10, but in fact, bought the PATA version instead by accident. I'm trying to decide if I want to go through the trouble, delay and possible expense of returning it to exchange for a SATA version.

Does anyone know of a review that shows the performance difference between serial ATA 150 and parallel ATA 133 for the newer SATA-II drives?

Thanks

 

[Varun]

There is no performance difference. Both PATA and SATA both offer more bandwidth than a hard drive can use.

 

[pm]

From a bandwidth perspective they are the same, but I was wondering if near command queing and other SATA features offer any performance advantage.

 

[stevty2889]

My SATA II drive gets a higher burst rate than PATA or SATA 150 could get(170mb/s), but the sustained transfer rate is about the same. I don't have NCQ, but from the anandtech reviews, it doesn't seem to help much except in server applications, and can actualy decrease desktop performance, so I wouldn't be too worried about that.

 

[pm]

Ok. I wish that I'd ordered the right drive, but I'll keep the one that I have. Thanks for your help and advice.

 

[RaiderJ]

SATA drives are more "future-proof", but otherwise there really isn't much difference. Cabling for the SATA drives however is much nicer.