IDE vs. SCSI
Updated: 01/24/2018 by Computer Hope
Today, the majority of computers users are switching from IDE and SCSI to SATA disk drives. However, for users trying to decide between IDE/ATA and SCSI review the below chart for pros and cons on each.
|Cost||Overall, IDE is a much cheaper solution.||Compared with IDE, SCSI is often more expensive to implement and support.|
|Expansion||IDE/EIDE allows 2 two devices per channel. Most computers have 2 channels.||SCSI is capable of supporting up to 7 or 15 devices.|
|Ease||IDE is commonly an easier product to set up than SCSI.||Configuring SCSI can be more difficult for most users compared to IDE.|
|Faster||Today, the latest IDE and SCSI drives running at the same RPM are very close. However, 10,000+ RPM drives are often only available for SCSI.||All the fastest drives are often available for SCSI first and in many cases 10,000+ RPM hard drives are only available as SCSI drives.|
|Resources||All motherboards today have an ATA/IDE interface and unless additional drives are needed no additional resources need to be taken.||Unlike IDE, SCSI requires an interface expansion card in most cases (unless the motherboard already has it). Adding any new hardware means more system resources are going to be required.|