1. Capacity: The data storage of your files wholly depends upon the actual capacity of the hard drive. Many manufacturers treat 1GB of capacity as 1000MB when the actual capacity should be 1 GB which equals 1024MB. Due to this, you may see slight differences in the actual capacity of the hard drive.
2. Transfer speed: The read/write speed of the hard drive refers to the transfer rate of the device. The transfer rate categorised into two-internal transfer rate and external transfer rate. Suggested that hard drive performance when the buffer is unused and later reflects data speed between drive buffer and system bus.
3. Cache: The cache is referred to as a virtual memory chip in the hard disk drive, and it helps increase the performance of the transfer speed. When the data is accessed, it exchanges between the drive storage and memory, so when the drive has a large cache, the system load is reduced.
4. Access time: Access time is the hard drive head finding the targeted sector of reading or writing the information from the start point when we render command. This process reflects the read/write speed of a hard disk drive so take it as consideration.
5. Rotational speed: The maximum amount of rotation that the hard disk is taking in one minute usually refers to the rotational speed of the hard drive, also known as RPM ( rotation per minute). The internal and external data transfer rate also depends on the RPM factor of a hard disk, affecting its performance.
6. Interface: Different interface types also contribute to the hard drive performance. They are the layouts and connections that connect the chip, controller, and cables in the hard drive that function coordinately and control the hard drive’s performance.