JAT said:
Apple is offering the best drives available in the marketplace, esp on the 17". Call up Seagate and ask when faster AND larger will be available.
The new 160GB 5.4k perpendicular recording drives are the fastest 5.4k drives yet (slightly faster than the longitudinal drives they are replacing, i.e. the previous largest drives available for MBP's being the 120GB 5.4k), and Seagate, AFIK, is the only laptop drive manufacturer that has announced plans (last June I believe) to ship a 7.2k 160GB perpendicular recording laptop drive 1st Q07. Whether or not they actually ship by then, is anyone's guess. The bump to higher density platters gets you higher STR's and some speed up in application usage over longitudinal recording.
So yes, the 160GB 5.4k is the fastest 5.4k drive on the market (well Hitachi drives are usually a smidgen faster than Seagate on most test suites, not that you'd ever notice the difference in reality), but no, it's still not quite as fast as a 7.2k 100GB drive (longitudinal recording). I've seen claims that there is little noticeable difference btw the fastest 5.4k drives and 7.2k, and then I've seen comments where people 'think' they definitely see a significant difference...YMMV. Hitachi should follow on the heels of Seagate and announce a 160GB 7.2k sometime in 2007. Of course what will speed things up even more is if they make these drives hybrid drives and incorporate up to 4GB of NAND flash memory. Santa Rosa platform supports Intel's Robson tech, which uses the hybrid drives. Apple has not officially said if they will adopt this, but it's a pretty sure bet...just when, early 2007 on the Santa Rosa platform MBPs, or later in 2007?
See this test on barefeats.com
http://www.barefeats.com/hard80.html