The 75 gig Deskstar 75GXP utilizes 5 platters in its 7200rpm operation. As a result, it runs a bit warmer than most ATA drives in recent memory (and certainly warmer than its smaller 45 gig brother). Outside of a drive cooler in our midtower testbed, the unit runs quite warm to the touch. Active cooling may be warranted. Seeks are quiet, though not as quiet as the Maxtor DiamondMax Plus 40.
The 'Cuda is a different beast. Here we have a drive that runs moderately cool, likely not requiring a drive cooler. Its speedy seeks, however, come at a cost... the drive's seeks are just as loud if not louder than Seagate's current 10k (and 15k!) units.
Hopefully the entry of these two drives fleshes out the StorageReview.com Database. The performance of the 75GXP, though, does raise some interesting questions. Though the difference IOMeter (and certainly WinBench 99) indicates is negligible, the access time difference is significant... the first time we've ever recorded such a gap between members of the same family. The higher seek time, slightly lower IOMeter scores, and hot operation of the 75 gig 75GXP may well mean that prospective purchasers should reconsider the cooler running 45 gig version or (if one can live within 30 gigs) the Quantum Fireball Plus LM. The 20 gig Barracuda ATA, on the other hand, is a different story. In our measure of choice, the drive not only outperforms its own predecessor (the Barracuda ATA II) but also current-generation drives from Seagate's competitors such as the Maxtor DiamondMax Plus 40 and the Western Digital Caviar 205BA. If 20 gigs of storage meets your needs and you can find one at a bargain price, go for an original 'Cuda... you'll be pleasantly surprised.
Since we unfortunately lack results of the 28 gig Barracuda in our new testbed, well compare the smaller 'Cuda as well as the 75 gig GXP (obviously) to the 45 gig 75GXP, a drive adept enough to seize our 7200rpm Leaderboard slot.