The graphic below compares the through-put for each of the Hard Drive buses used as a PC Hard drive interface to a Disk Drive. The speed of the transfer has increased from a through-put of 8.3MBps with ATA-1 to 150MBps with SATA-1. The throughput of the SATA II Hard Disk Drive [HDD] interface currently stands at 300Mbps.
Mother Boards are being produced which accept the Serial ATA bus and also contain one or more PATA interfaces to accommodate legacy HDDs. Use the older interface as a back-up drive or secondary drive, and purchase a new SATA drive to handle the Serial ATA interface.
Regardless of the Hard drive bus speed, the limiting factor has always been the mechanical movement of the head and platter. However as the bus speed increases as with SATA, the interface does see an increase because the data is off-loaded onto another IC, or to the Hard Disk Drive via the on-board cache.
Related pages:
Hard Drive Manufacturers page.
Solid State Drive Manufacturers page.
Hybrid Hard Drive Manufacturers page.
IDE Hard Drive Interface Bus
page.
SATA Hard Drive Interface
page.
or to the main PC Interface Bus
page.
Use the Buses icon at the bottom of the page to reach the top
level index for all bus types.
Electronic Design Key words: Hard Drive, HDD, Disk Drive, IDE, SATA, Throughtput, Through put, thru-put, Speed, Cable, Comparison, Compare, Signal Names, Computer Bus, Slot, Physical Interface, Connector, PC, Personal Computer.
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