Hard Drive

[PringlesInside]

Hello,

I have the 640GB WD CAVIAR GREEN WD6400AARS, SATA 3 Gb/s, 64MB CACHE

which i belive you dont sell the 640GB version anymore (by looking at the builder i dont see it :sleep1.

I thought it would be a fairly fast hard drive.
My question is: what is the speed of this exact hard drive? I was told it runs at like 7,2000 rpm (so quite fast) when needed and then spins down to a much lower speed when not being used much.

Sorry in advanced if i posted in wrong place :shaun:

Cheers

 

[Nemesis]

http://techreport.com/articles.x/15769

Which concludes :

When it first launched the GreenPower Caviar, WD refused to disclose the drive's actual spindle speed, saying only that it was somewhere between 5,400 and 7,200RPM. The company later admitted that the drive ran at closer to the former than the latter, but we haven't been able to coax out an exact spindle speed.

Note that this is talking about the 1TB drive but id imagine its a pretty similar story for the 640GB version

On the other hand :

To be fair, the Caviar GP's performance was surprisingly good for a drive whose platters spun at close to 5,400RPM. In some tests, it was even faster than terabyte drives spinning at a full 7,200RPM.