Written by Richard

What are the differences between HDD and SSD?

If you want to replace and expand the storage of your laptop, desktop, console or NAS, you can choose from an HDD or SSD. An HDD is cheaper, an SSD is 4 times faster and quieter, but where exactly is the consideration? I explain to you what the differences are so that you choose the right type of disc.

What is an HDD and SSD equal?

An HDD and SSD is both internal storage, which means that you install this part in a device such as laptop, desktop or console. This is where you keep the operating system of your computer, and all your other files: videos, photos, office documents and programs.


What is an SSD? (Solid State Drive)

An SSD is a computer chip on which you store data. Electrical impulses read data from or write files away. As a result, an SSD is silent in use.

What is an HDD? (Hard Disk Drive)

An HDD is a series of flat cylinders stacked on top of each other. Just like an old-fashioned record player, the disc rotates while the read and write head reads the disc or writes information. You can feel this on your laptop or desktop, because the spinning causes noise and a slight vibration.

Storage capacity


SSD is an advanced type of hard drive. The SSD technology is more expensive to produce, but thanks to smart manufacturing techniques from SSD manufacturers, SSDs per GB are becoming increasingly cheaper. There are HDDs with a storage capacity up to and including 4TB.


Over the years, manufacturers have been able to make HDD smaller and more compact, which makes the storage capacity large. There are HDDs with a storage capacity up to and including 12TB. HDDs are cheaper per GB than SSDs.



An SSD is 4 times as fast as an HDD. This is because an SSD sends data directly. Too note the start-up time of your PC, which takes about 15 seconds with an SSD. In addition, you load programs and games by half faster than an HDD.

  • Read speed: 500MB/s - 3200MB/s
  • Write speed: 300MB/s - 1500MB/s


The technology of HDD has been around for years, so the speed has hardly changed. An HDD has to do mechanical work by rotating it to read and write information. That's why booting your computer with an HDD takes 45 seconds to a minute or even longer, depending on your operating system.

  • Read speed: 120MB/s - 200MB/s
  • Write speed: 100MB/s - 175MB/s

Reliability and energy efficiency


An SSD has no moving parts, making it less hot than an HDD. This makes your SSD even more energy-efficient. Due to lower heat production, your drive stays cool and undamaged. Yet an SSD has wear and tear just like an HDD. Because the lifetime of SSDs is expressed in TBW (Terabytes Written) you know for sure how long your SSD will last. The lifespan of an SSD is not always better, but more transparent thanks to the TBW. Because data is stored in SSDs as an electric charge, information leaks away faster in case of long-term power loss.


The disk in an HDD rotates, causing warmth and vibration. Modern HDDs have been developed with built-in technologies to reduce heat and vibrations, such as anti-vibration sensors. You regularly move a laptop. That's why an HDD in a laptop lasts longer than in a desktop, console or NAS, which you rarely move. An HDD stores data magnetically, so that information leaks away much more slowly at SSDs during prolonged power loss.

Do you choose an SSD or an HDD?

SSD: Speed ​​and reliability

Do you want to make your entire computer experience faster, such as starting up within 15 seconds, loading programs faster and playing your game sooner? And do you use your device almost daily for all kinds of tasks and do you no longer need 500GB for all your storage? Then you choose an SSD. So you provide your device with a good speed boost, it becomes quieter, more efficient and you do not have to feel too deep in the pouch.

** Recommended for: **

  • Speed ​​upgrade for daily use like quick startup and loading programs.
  • PC gamers with modest game library.
  • Graphic designers, video editors and music producers.

** HDD: Ample storage capacity ** Would you like to store entire video collections, photo libraries or a large game library? Then an HDD offers suitable capacity more advantageously than an SSD does. If you have a NAS, then an HDD is also more suitable for running RAID setups and storing large amounts of data. Because of the network connection of your NAS you lose the speed advantage of an SSD.

** Recommended for: **

  • Console gamers who want to save more than 5 games,
  • PC gamers with large game libraries,
  • Graphic designers, video editors and music producers,
  • NAS users.
Article by:
Richard Storage specialist.

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