Thinkpads Forum

I surely consume a lot of disk spaces. AFAIK, size per se, there is really no difference between all those harddisk options. And if we forget the price for now, I still have two worries of getting larger harddisk:

1. Power consumption. We know that higher speed harddisk (7200rpm) consumes more power. What if same speed but larger size? Will there be more "content" to spin and take more power?

2. Weight. Data is denser in a larger capacity harddisk. Does that mean there are more weighted matters in it? Weight is a very big issue for an X200 buyer.

And I am not considering SSD for now. It is just too small. I do not want to carry an external harddisk with me..

Your comment will be appreciated.

1: 7200 RPM drives consume more power than 5400 RPM drives but the difference is only about 20 minutes less runtime on batteries.   the only way to get a faster drive and more battery life is to go SSD.

2: all modern mechanical HDDs weigh within +/-5 grams of one another (~115g on average).   the samsung SSD spec'd by lenovo is about 50g lighter than a HDD.

erik wrote:1: 7200 RPM drives consume more power than 5400 RPM drives but the difference is only about 20 minutes less runtime on batteries.   the only way to get a faster drive and more battery life is to go SSD.


2: all modern mechanical HDDs weigh within +/-5 grams of one another (~115g on average).   the samsung SSD spec'd by lenovo is about 50g lighter than a HDD.

About 1: Will 320G 5400 RPM cost more power than 160G 5400 RPM?

About 2: So you are saying there is no big difference in weight between 320G and 160G HDD. Good news if that is the case with me!

Again HDD is just too small for me..

RPM is RPM whether you have to spin one platter or two.   you'll never humanly notice any difference in power consumption between a 1- or 2-platter drive.   i wouldn't worry about it.

an extra platter adds about 10g.