Difference between SSD and HDD Storage Capacity


SSD is a solid-state storage device that uses integrated circuit assemblies to store data persistently. It is typically using flash memory and functions as secondary storage in the hierarchy of computer storage.


It is a data storage device that exists inside the computer. It has spinning disks inside where data is stored magnetically.

The above figure shows that the internal architecture of a hard disk is made of several platters, and platters hold the information; the functions of the heads are to read or write information from the disk surface. The surface of the platter is made of several tracks, and each track is divided into sectors as shown in the below figure.


1. It stands for Solid State Drive1. It stands for Hard Disk Drive
2. It consists of Electrical Parts, such as ICs.2. It consists of Mechanical Parts, such as ARM.
3. SSD access time is much faster than HDD. 3. HDD access time is slower than SSD.
4. SSD use less electricity power4. HDD use more electricity power
5. SSD do not generate heat or noise5. HDD generates heat or noise
6. It is very expensive. 6. It is cheaper than SSD.