Major differences between SSD and HDD

Here are the major differences between SSD and HDD that you should know about.


Assembling a system is quite often the preference of many as opposed to settling for a pre-assembled system you can buy right off the shelf. While this is quite the sensible thing to do if you wish to get the most out of your computer the accompanying jargon you might have to familiarize yourself might prove to be a daunting task for a good number.

Major differences between SSD and HDD


SSDs (Solid State Drives) and HDDs (Hard Disk Drives) are the options available when making the choice for a storage device for your computer. A comparison of SSD and HDD will be made to provide the differences between the two. We will be listing their advantages and disadvantages as well.

Major differences between SSD and HDD

SSD (Solid State Drives)

An SSD or Solid State Drive has a structural make up that is quite similar to that of a USB memory stick. Just like USB memory sticks, all the information put into the drive is stored within microchips.

An SSD utilizes a NAND-based flash memory which is a non-volatile in nature. The non-volatile nature indicates that the files or things that are stored within it will not be “forgotten” once the drive is turned off.

An SSD does not have a mechanical arm to read or write information and any type of data. There is an embedded processor within the solid state drive called the controller which performs the operations related to reading and writing data.


The solid state drive is quite light compared to its counterpart owing to the lack of moving parts within its structure, this also translates to better transfer speeds.

Power draw: 2-3 watts.

Cost: $0.20 per gigabyte (approximate)

Bootup time: 10-13 seconds (average)

Noise: None due to the absence of moving parts.

Vibration: None due to the absence of moving parts.

Heat produced: The absence of moving parts and lesser power draw result in lesser heat being produced.

Major differences between SSD and HDD

HDD (Hard Disk Drives)

An HDD or Hard Disk Drive stores data on a rotating platter. It is also fitted with a read/write head that floats above it which reads and writes the data.

The speed of rotation directly correlates to the performance speed of the HDD. The advantage of HDD is that it can store large amounts of data at a cheaper price. It is fair to conclude that, all HDDs are much cheaper than SDDs.

Power draw: 6-7 watts.

Cost: $0.03 per gigabyte (approximate)

Bootup time: 30-40 seconds (average)

Noise: Audible clicks and spinning can be heard.

Vibration: The spinning of the platter can result in vibrations.

Heat produced: Though HDDs do not produce much heat, compared to SDDs, they are rather high.

SEE ALSO: Samsung Galaxy S7 Edge receives a price cut in India

Most Read Articles
Best Mobiles in India

Read More About: hard disk news computers

Best Phones

Get Instant News Updates
Notification Settings X
Time Settings
Clear Notification X
Do you want to clear all the notifications from your inbox?
Yes No
Settings X
We use cookies to ensure that we give you the best experience on our website. This includes cookies from third party social media websites and ad networks. Such third party cookies may track your use on Gizbot sites for better rendering. Our partners use cookies to ensure we show you advertising that is relevant to you. If you continue without changing your settings, we'll assume that you are happy to receive all cookies on Gizbot website. However, you can change your cookie settings at any time. Learn more