Difference between SSD and HDD

SSD (Solid state drive): A solid state drive or solid state disk is a solid state storage device that uses integrated circuit. It provides substantial benefits over traditional hard drives.

HDD (Hard disk drive): HDD’s were firstly introduced by IBM in the year 1956. HDD can store data for a long period of time and capable of storing huge amount of data cheaply.


Difference between SSD and HDD: There are many differences between SSD and HDD. Some of them are explained below.

  1. AS compared to HDD, the prices of SSD are very expensive.
  2. HDD has large capacity for storing data (for desktop- 6TB) while in SSD you can store maximum 1 TB data in desktop.
  3. Battery life of SSD is more as compared to HDD.
  4. There is no noise in SSD because there is no spinning part but due to moving parts and audible clicks HDD can be heard.
  5. Due to spinning of platters, HDD can be vibrated while there is no any vibration in SSD.
  6. File copy or write speed in SSD is 200 MB/s and up to 500 MB/s while in HDD, speed of copy of files are 50 MB/s to 120 MB/s.
  7. File opening speed of SSD is 30% faster than HDD.
  8. There are chances of erase of data due to magnets while SSD is safe and there is no any chance of data erase in SSD.
  9. Average time between failure rates of SSD is 2.0 million hours while mean time between failure rates of HDD is 1.5 million hour.
  10. Heat produced by HDD is higher as compared to SSD because of moving parts.
  11. Boot time of operating system is around 10-13 sec in SSD while in HDD boot time is approximately 30-40 sec.

SSD’s are good when:

  • If you are looking for a faster performance
  • If you have no issue of limited storage capacity

HDD’s are good when:

  • When you don’t want to spend more money.
  • If you have no issue of the system boot time then you can go with HDD (Takes 30 to 40 second).
  • Looking for a large storage capacity then go with HDD. HDD can store up to 6 TB data and newly launched HDD can store up to 10 TB data.