yeah the bigger cache... plus it doesn't have that spin down thing which delays sometimes and causes lag... they don't ship to ireland!
This is the biggest annoyance of the 1tb caviar green, or of any hdd that ive ever used. Even if you have windows set to leave the drive running 24/7, it will still power itself down, and go into a standby mode after about 5-10 min of idleing. Its programmed into the hdd's firmware. It isnt too big of a deal if its used as a secondary storage drive, but its horrible for a main os drive. Mine came inside of my 1TB WD MyBook. I had to open it up and use it as a main os drive for about a month, until I could replace my os drive that failed. Needless to say, it was a big PITA to wait 5-8 seconds for your computer to start responding again after you walk away from you pc for a few min.
As far as the Speed, a lot of the older green drives were 5400-5900rpm, but most of the new ones, to include my 1tb green, is 7200rpm. They also have a smaller cache than the black's.
All in all, I would avoid this drive like the plague if your going to use it as a main drive.
Edited by sYstEmATiC, 17 June 2011 - 07:51 AM.