Wow, 7K400 takes another beating Are we going to hear from T7K250 or 7K500 in the near future?
Also, the 7200 ATA drives are pretty close (if we exclude the abyssmal showing of 7K400 as an outlier), with a spread of about 10% between SP P80 and WD2500KS.
I am the keeper of the [H]ard|Forum [H]ard|Drive Buying Guide (I am known as DougLite there as well), and these results are shaking things up for me. WD2500KS wasn't very compelling on TB3, but is best in class on TB4. Hitachi has gone from penthouse to outhouse, and it looks like WD has moved into the penthouse suite.
Seagate looks a little better this time around than in Office, Maxtor is still sitting pretty, and MAU is still untouchable. Samsung is at least keeping up with the pack, admittedly still at the back, although the P120 drives show promise with their very high transfer rates. WD had better have a refresh on WD740GD in the works, or it is going to become an extinct dinosaur (pun intended) with the next generation of 7200 drives. Raptor's lead over 2500KS is a scant 7.5%, certainly not worth the premium of a 40% higher price and 70% less capacity.
The short queue depths explain the little-to-nothing impact of CQ, at least in my mind.