You mean speed/Size or "name of"?. My Samsung NP700G7A-S01-UK, has TWO 750GIG hard drives, both of which have a spin speed of 7200 RPM. However, the ones ive seen lately (including ocuk one) have 2 Terabytes, but only 5200 Spin. I prefer the 2 fast ones i have for sake of a bit more space.
Tony
Its 2x1 TB Hardrives with only 5200 spin, but i'd suggest doing what many have done here and swap it out for a 128 or 256gb ssd (my windows performance for the hd when up gtom 5.9 to 7.6 for the storage value).