Conceptually, hard drives work a bit like old-fashioned record players.
They contain spinning platters. A part called the actuator moves a tiny arm that floats a miniscule distance above the surface of the disk platters.
It is not the raw speed of the SSD, it is how it works.
A traditional hard drive is like a record player, when you send data from the HDD to the CPU the computer/Laptop has to find it, it hunts around the platters looking for all the data.
With an SSD, there is no waiting, this is because your data is effectively in a spreadsheet.
The SSD knows where all your data is instantaneously.
No waiting. No spinning beach ball.
Without any moving parts, SSDs operate more quietly, more efficiently, and with fewer parts to break than hard drives that have spinning platters. Read and write speeds for SSDs are much better than hard drives.
which is more faster than an HDD.
This means your Mac boots up in less than a 20 seconds, programs launch and run more quickly, files are transferred faster, and you can do data-intensive work without worrying that your computer will stall or freeze