what is the major difference between HDD and SSD Hard disk | About For All

Before getting to know the difference let us know what SDD and HDD actually are and what’s their work.

 

What are SDD and HDD:-

Solid state drive (SDD) is a non-volatile storage device that stores and recovers data constantly on solid-state flash memory. However, this data is stored on interconnected flash memory chips instead of platters, which makes them faster than HDDs. It provides better performance compared to HDD.

So Now what is HDD?

HDD (Hard disk drive) allows you to store data on a rotating platter.

It has a read-and-write head that floats above the spinning platter for reading and writing data. The more the platter spins, the more HDD performs quickly.

Differences between SDD and HDD are:-

 

 

-HDD has longer reading and writing time while SDD works for a short period.

-HDD has higher latency Whether SDD doesn’t.

-Over a longer time, and with larger files stored on an HDD, there is a high chance of

fragmentation while in SDD fragmentation doesn’t occur.

-HDD is available in different capacities whether SDD offers a limited variety.

-HDD supports fewer I/O operations per second while SSD supports more I/O operations per second.

-An HDD weighs more than SDD. SDD drives are lighter than HDD drives because they don’t

have the rotating disk spindle and mirror.

-HDD contains moving mechanical parts, like the arm. On the other side, mechanical parts, only electronic parts like ICs.

-HDD drive is older and more traditional Although SSD is a newer type of storage drive.

-HDD are usually 3.5″ and 2.5″ size for desktop and laptops. SDD is available in 2.5 inches, 1.8″ and 1.0″.

-The HDD has moving parts and magnetic platters. With more uses, they are prone to fail. While on the other side, the SDD drive has no moving parts. With more services, they are less likely to fail.

-HDD can produce noise due to mechanical movements and SSD does not.

-The performance of HDD becomes worse because of the fragmentation but the SDD drive is not impacted by fragmentation etc.

-SDD is faster than HDD. It is because SDD doesn’t have electrical circuitry and moving parts like HDD. A 7200 RPM HDD can deliver a read/write speed of 80 to 160 MB/s while a typical SSD can deliver a read/write speed of 200 to 550 MB/s which makes it an ideal choice for better performance.

 

 

Now let us discuss how they both work in actuality.

HDD is made up of several plates of magnets that stores data. To read and write data, the header needs to move to an appropriate position and needs to wait for the sectors to be underneath it when it Platelets rotate.

Advantages of HDD :

-It has a Large storage capacity

-Stored items can’t be loose even after shutting off the computer

-It's fixed with a computer

-It Can store data like documents, images, videos, and more.

-Its size is small, and it’s portable to use

-They’re cheaper

Disadvantages of HDD :

-Computer won’t work after dish crashes

-You can’t transfer it because it’s fixed inside the computer.

The regular head can crash, which can cause damage to the surface.

 

 

SDD Words are completely different from HDD. It uses a solid-state medium, typically NAND. Data is written to or read from the NAND by a controller, which is considered the device's brain. SSD read and write speeds are uneven, so data reads are very fast, but SSD write speeds are quite slow.

Advantages of SDD :

-SSDs have lightweight components or moving parts, as they are more mobile-friendly and are much better suited for constant traveling.

-SSD drives are resistant and durable.

SSD is reliable as it uses flash memory to Store data.

-SSD offers an access speed of 35-100 which is ten times more than HDD.

Disadvantages of SDD :

- Upfront cost of SDD is much more than HDD

-Maximum capacity of SDD is limited.

In cost, HDD is cheaper than SDD. But if money is not any constant then SDD should be the first choice.

As it’s durable, reliable, and super fast. Hence, it’s the best choice.