HDD vs SSD – Major Differences

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Jackson Roy

The major difference between HDD and SSD is their method of storing and accessing data. HDD hard disk drive is a memory storage device that consists of mechanical plates and a moving head to process data and information.

On the other hand, SSD solid-state drive consists of memory chips for storing data. As compared to HDD, SSD is more advanced and faster.

Major Differences Between HDD and SSD

As far as their internals are concerned, HDDs are known for being durable and cheap. This is why they have been called the knights in shining armor of storage devices, though this may come at a cost when it comes to speed. SSDs, on the other hand, prioritize performance over everything else, so much so compared to these nimble warriors of theirs, which can be really quick.

So don’t think about this battle between them only in terms of strength or size but also efficiency and adaptability in an age where nothing matters except how fast things can be done. Please take part in our illuminating tour over the territories belonging to HDD versus SDD as we reveal what sets them apart from each other and guide you towards selecting your perfect companion towards digital dominance.

What is HDD?


HDD are also storage device and are non-volatile. It can store a large amount of data and maintain it even when the power is turned off. hard disk drive consists of mechanical moving parts and is easily available in the market.

It is installed inside the computers and other devices and is used to run and control the data. It usually acts as a primary or secondary storage device.

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Advantages of HDD

  • The cost of HDD is usually lower than that of an SSD and the system containing the hard disk drive is not that expensive and is easily available in the market.
  • HDD provides more storage options for its use as compared to SSD and also has more storage capacity.
  • They are easily available in the market and are approachable to customers due to their flexible price range.
  • Moreover, they are non-volatile and unlike other memory devices, they do not lose data when they are out of power.

Disadvantages of HDD

  • They are relatively slower in processing the data for the user than SSD.
  • Due to the mechanical components, HDD produce sound while working and also release heat.
  • The power consumption of hard disk drive is high and some power is lost in the form of heat during the work.
  • Mechanical parts present in HDD make it more vulnerable to mechanical failures.

What is SSD?


A solid-state drive is a type of storage device that’s an advanced form of device and consists of a memory chip called NAND flash memory. It can access data in a short period of time.

In the modern world, mechanical parts are replaced by chip-based memory devices, as they are more advanced in features and can store and access data at a very high speed. Moreover, they are less vulnerable and also produce less sound while working.

Advantages of SSD

There are the following advantages of a solid disk drive:

  • Because SSD consist of memory chips instead of mechanical parts, it work faster than other drives.
  • Another benefit of a solid-state drive is that it is durable due to its non-mechanical parts and there is less possibility of SSD losing data due to a mechanical drop or injury.
  • SSD is more compact as compared to HDD and can be used in any portable device, including ultrabook and tablets, to increase the storage capacity of the device.
  • Another advantage is that SSD does not produce any sound because it does not have any mechanical plates or parts.
  • There is less loss of energy and power when using SSD because it consumes less power and does not release any heat or very little heat during the process.

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Disadvantages of SDD

There are the following disadvantages of SSD:

  • SSD is almost two or three times more expensive as compared to HDD and it also causes an increase in the price of the computer.
  • The storage space of SSD is usually limited and it’s very difficult to find SSDs with high storage. Their price also increased with an increase in storage.
  • SSD are hard to find in the market, but with the change in trends and technologies, there has been an increase in the production of SSD.
  • It’s really difficult to recover the data on SSD as compared to HDD.

Comparison Chart between HDD and SSD

Basis for comparison HDD SSD
Abbreviation HHD stands for Hard Disk Drive. SSD stands for Solid State Drive.
Speed The latency of HHD is comparably higher, has longer read and write times and supports some IOPS. The latency of SSD is comparably faster, has longer read and write times and supports more IOPS.
Heat, Electricity, and noise Hard disk drive produce more heat and sound due to the use of more electricity to rotate the platters. solid-state drive does not produce any heat or sound, as there is no rotation required in SSD.
Defragmentation Fragmentation causes a decrease in the performance of HHD; therefore, there is a continuous need for defragmentation of HHD. Defragmentation is not required in the case of SSDs, as its performance does not get affected by fragmentation.
Components HHD consists of moving parts, such as

platters that consist of motor-driven spindles that hold flat circular disks coated by a layer of magnetic stuff.

Read and write disks are present.

All these things are packed in the metal case.


SSD does not contain any moving parts. It consists of three basic components, such as

·       Controller

·       Cache

·       capacitor

Weight HHD is heavier than SSD drives. Due to the lack of rotating disks, spindlesand motors, SSD is lighter than HHD.
Dealing with vibration The vibration of HHD due to the moving parts makes them susceptible to crash. The vibration tolerance of SSD is almost 2000 Hz, which is higher as compared to HHD.


The decision to choose between HDD and SSD depends upon the need of the client. Both disks offer different features and ease. For instance, if you want to have huge space, then you should go for HHD because it has the capacity to store a large amount of data and keep it safe. On the other hand, if you want to save your primary data, including operating systems, applications, and programs, then you should choose SSD because SSD dramatically works faster than HHD.

Regardless of your choice of drive, whether you are choosing an HDD or an SSD, you need to keep it clean for better functioning. As the operating system of the device needs huge disk space, a decrease in space can cause many problems in the operating system of the device.


Which is faster, SSD or HDD?

SSDs are quicker than HDDs because they lack moving parts.

Are HDDs cheaper than SSDs?

Yes, in terms of cost per gigabyte, HDDs are generally less expensive than SSDs.

Which type of storage device is more durable – HDD or SSD?

Since there are no moving parts to wear out over time, SSDs tend to be more durable.

Can I upgrade from an HDD to an SSD in my computer?

Yes, you can switch out your current drive for a new one if it’s a hard disk drive and you’d like to install a solid state drive instead.

Do SSDs consume less power than HDDs?

Yes, because they don’t need spinning disks.

Are there any noise differences between HDD and SSD?

HDDs produce sound due to their mechanical nature while ssd do not have any movable components thus silent.

Can I use both HDD and SSD in my computer simultaneously?

Of course! Just bear in mind that each has its own unique functions – so store you OS on the faster option (SSD) and files on the bigger capacity one(HDD).

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