Doesn't really work like that -- hard drive performance is somewhat hard to quantify for one, since the workload will have drastic effects on anything, and there's also significant variations within hard drives of the same speed. Obviously, a given 7200 RPM drive is generally faster than a given 5400 RPM drive, but the speed difference is likely to be modest and probably significantly less than 1/3 (but again, there are lots of other variables at work). Finally, since we're talking about a laptop, a 5400 RPM will have a modest battery life increase relative to a 7200 RPM.Based simply on math, I assumed the 7,200 RPM is one third faster than the 5,400 RPM.
Interesting, I wonder if you didnt hear more noise or feel vibrations is because of the brand! In the past I have tried WD and Seagate and both increased noise and vibrations noticeably!Hmmm.
I popped in a 500GB 7200 Hitachi.
For what I do, I didn't notice much speed increase.
I also didn't notice any more noise or vibration either.
I have read some threads of folks hearing the hitachi click, but I haven't experienced that either.Interesting, I wonder if you didnt hear more noise or feel vibrations is because of the brand! In the past I have tried WD and Seagate and both increased noise and vibrations noticeably!