The noise measurements place the Spinpoint T slightly better than either the Western Digital or Samsung's previous drives and roughly on par with the classic Barracuda IV. As usual, the measurements do give a rough idea of where the drive stands but don't tell the whole story.
At idle, the Spinpoint sounded very clean and smooth. The Samsung Drives and the Western Digital were all very similar in volume, and all exhibited the same whoosh of airflow. Subjectively, the Spinpoint T sounded the nicest by a small margin; it sounded softer than the Western Digital, and had less high frequency noise than the older Samsung drives. It should be emphasized that the drives all sounded very similar, and any would be acceptable in quiet system.
Our usual recommendation to soft-mount any desktop drive goes double for the Spinpoint T: Its vibration level was very high, and a low 120 Hz hum could sometimes be heard even when the drive was placed on foam. When placed on a hard surface, the hum was amplified and came to dominate the noise character, confirming that hard-mounting would not be good for noise quality.
We were pleased to note that seek noise was much improved over the P120 — something that is not reflected in the noise measurements. Seeks were duller and more muted than the P120, although not quite as good as the P80, and certainly not as good as the nigh inaudible Western Digital. Even better, AAM seemed to be working again, and did much to reduce the sharpness of the seek noise. This is good news; seek noise was one of the biggest disappointments with the P120.
The extra platter in the T Series did not increase power consumption, which was in line with other 3.5" drives, and even a little on the low side for such a large drive. Power consumption was almost identical to the P120.
Seagate Barracuda 7200.10 Idle 24 dBA@1m 28-34 dBA@1m
Samsung Spinpoint T Idle 20 dBA@1m Seek 22-23 dBA@1m