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Wanna know how HDD RPM speed affects heat, battery life, noise, and performance?

Very interesting read, I would have thought that the battery life would have been more affected with the increased RPM speed!
 
I knew that 7200 RPM HDs arent as hot as most people said they were. Im running a 5400 RPM model, but it commonly runs at around 55-56C due to a hot CPU and bad chassis cooling in my laptop.
 
Originally posted by: BlingBlingArsch
did the 100gb 7200rpm drives already show up? cant find them in europe yet.
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I know Dell is offering them for order, but that doesn't necessarily mean if you order an XPS2 that you will get it w/a 100GB 7200RPM any time soon 😉

Seagate will be releasing their 7200.1 for retail purchase in June, not sure about Hitachi.
 
yes the third quarter....couple of good new products coming (turion, x2...)

And it makes sense to wait for that drive cuz as shown in the article it wont reduce battery life. I hope prices will fall though.
 
Originally posted by: Zukatah
Very interesting read, I would have thought that the battery life would have been more affected with the increased RPM speed!
Click to expand...


Remember that the hard drives take a MAX of 2W, which is nothing, in light of 62W CPUs, 7W LCD screens (the large, high res, ultra bright LCDs take even more!), RAM, wi-fi, and more.

Keep in mind that the 6800U go takes an astounding 66W, while the Pentium 4 M breaks 100W!
 
Originally posted by: Kensai
And the Pentium M eats up a whole 27W! 😱
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What I meant is that increaed RPM adds a NEGLIGIBLE increase to the total amount of power that the laptop consumes, even IF you have a 27W CPU 🙂

Suppose you go from the 4200rpm drive to the 7200rpm drive, which adds ~1W.

Then, considering ONLY the Pentium M CPU:

29/28 = 1.035

That means that battery consumption only increases 3.5%


Now, add 7W for the LCD, 5W for the built-in graphics, 5W for the motherboard, and 2W for the RAM (estimates). These are just estimates, and the real power intake should be MORE.

47/46 = 1.02%

That means, for the ULTRAPORTABLES, having a 7200rpm drive will only decrease battery life 2%

That means total battery life will go from 4 hrs to 3.92 hours. No biggie, eh? 😉

(3.92hrs = 3hrs 55 min)


Of course, the laptop we tested was a mainstream laptop, not an ultraportable, so you can't even notice the effects of going from a 4200rpm drive to a 7200rpm drive 🙂

 
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