What is the difference between IDE Hard disk and SATA Hard disk

 

 

 

IDE hard disk is simply a parallel port where in the data travel parallel in a simultaneous fashion.
Where as in SATA hard disk the data transfer happens in a serial fashion where the data bits travel one after the other. Even though this is in serial fashion one after the other this forms the base for fast transfer of data and very reliable.

 

 

• Main difference appears when you connect them to the motherboard. A PATA disk uses an 80 pin ribbon that is about 3-4 inches wide while the SATA disk uses a 7 pin cable that is less than an inch wide.

 

• SATA disks offer a huge difference in performance when transferring data.

 

• Earliest version of SATA had a maximum transfer rate of 150MB/sec  which is already ahead of the 133MB/sec transfer rate of the fastest PATA disk.

 

• And soon, SATA3 disks would soon be available in the market; offering speeds of up to 600MB/sec.

 

• Jumpers – PATA/IDE requires to deal with jumpers

 

• Hot swappable – only SATA

 

• Air flow -large IDE cable vs thin SATA

 

IDE :

• IDE – Integrated Drive Electronics
  

• Data transfer speed is upto 133 MB/Second

• 40 pin connector

• Parallel access

• Not widely used in present situation

 

SATA :

• SATA – Serial Advanced Technology Attachment
  

• Data transfer speed is upto 600 MB/Second

• Small pin connector

• Serial access

• IDE is replaced by SATA drives in present situation