40GB ATA-6 and:
5400RPM with 8MB cache -or- 7200RPM with 2MB cache?
no brainer. 7200rpm
Indeed. The integrated cache on a hard drive has virtually no effect on real life performance while RPM translates almost directly to speed (seek times). 7200 RPM is about ~30% faster.
I was asked if a 10K rpm 2.5" drive was available - never seen one. Unless anyone knows better?
10K (and even 15K) RPM 2.5" SAS hard drives are pretty common
I suppose you are interested in SATA? I don't think there are any such things out there. The heat output and power consumption would make the things unusable in a laptop.
Thanks to all. 10K would be nice but $---.
Be careful eventhough the drive is running at 7200RPM you'll use more battery life to power that drive. The 5400RPMs with the 8MB buffer will make it feel like a 7200RPM which would use less battery. You won't even noice the speed difference if any.
Benchmarks please? Something that backs up your silly claims.
Here is something that says what I say: http://www.amug.org/amug-web/html/amug/reviews/articles/seagate16/