Seagate has finally started shipping its Momentus 5400 PSD 2.5-inch hybrid hard drive to OEMs. The drive will be available in 80, 120, and 160GB capacities with a SATA 1.5 interface, 8MB of cache, and 256MB of flash memory to buffer cached write requests to disk. Seagate's HHDs are said to reduce boot time from 40 to 32 seconds while cutting average power consumption from 0.78 to 0.45 watts. However, Melissa Johnson, a Seagate product manager, says the sub-par performance for all HHDs stems from first generation issues with both the BIOS and Vista device drivers because they do not know how to properly utilize the flash memory.
Source: ExtremeTech