As to buffer or RPM the problem while deeply discussed can by answered by "benchmarking with your application." Let's be clear that some SQL database may work better on one drive and a home user would get better results from the other drive as their benchmark was "time to load my game."
So far given the limited factors you supplied, the winner could lose as we change our benchmark.
Just wanted to ask some little question that's bothering me a lot.
Recently I took a look at WD hard drives.
Generally my question is:
If I would take two HDs with these parameters:
1. X(GB) 16MB of buffer and 10kRPM
2. X(GB) 32MB of buffer and 7.2kRPM
X(GB) - actually doesn't matter.
Which one is better, the higher buffer size or RPM speed?
And which one of those two parameters more affects the HD's
performance and why?
Tnx in advance for help.