These WD drives

[MirageMobile]

http://www.newegg.com/Product/Product.aspx?Item=N82E16822136218&Tpk=WD6400AAKS

and

http://www.newegg.com/Product/Product.aspx?Item=N82E16822136131


This first one is the 640gb and the second is 750gb


I always hear people mention how fast the 640gb drive is and never anything about the 750gb. To me the drives look very similar; the only difference being capacity.

Does the 640gb drive function faster? Or is it just that the larger drive is not as frequently mentioned?

 

[BinarySynapse]

http://www.newegg.com/Product/Product.aspx?Item=N82E16822136218&Tpk=WD6400AAKS

and

http://www.newegg.com/Product/Product.aspx?Item=N82E16822136131


This first one is the 640gb and the second is 750gb


I always hear people mention how fast the 640gb drive is and never anything about the 750gb. To me the drives look very similar; the only difference being capacity.

Does the 640gb drive function faster? Or is it just that the larger drive is not as frequently mentioned?

I think the 750 has three 250GB platters while the 640 has two 320GB platter. So the greater speed of the 640 is due to the increased bit density (more data is read per revolution).

 

[Astral Abyss]

Newegg was selling the 640GB for $99, but when I went to buy one they had raised the price by $30 (wtf Newegg?). So guess what, Mwave.com got my business instead. $97 + $7.50 for 2nd day shipping.

The 640 is a better drive than the 750. Higher desinty platters, and fewer platters needed.

 

[pug71]

Astral, I noticed that too. I wish I had snagged a 5th from the egg before they went back up. oh well.