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 you can store data on. Electrical impulses read data or write files. As a result, an SSD is quiet in use.

HDD harde schijf

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. SSD technology is more expensive to produce, but thanks to smart manufacturing techniques from SSD manufacturers, SSDs are becoming increasingly cheaper. You can find SSDs with a storage capacity up to and including 4TB nowadays.


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



An SSD is 4 times as fast as an HDD. That's because an SSD transmits data directly. You will notice this by the boot time of your PC, which takes about 15 seconds with an SSD. In addition, you can load programs and games at half the speed of 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 must perform mechanical work by spinning 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 revolves, creating warmth and vibrations. Modern HDDs have been developed with integrated technologies to reduce heat and vibration wear, such as anti-vibration sensors. You move a laptop regularly. That's why an HDD lasts longer in a laptop than in a desktop, console or NAS, which you rarely move. An HDD stores data magnetically, so information leaks much slower during long-term power losses.

Do you choose an SSD or an HDD?

SSD: Speed ​​and reliability

Do you want to make your entire experience faster by booting within 15 seconds, loading programs faster, and playing your game sooner? Do you use your device for all kinds of tasks daily and do you no longer need 500GB for all your storage? In that case, choose an SSD. You can provide your device with a considerable speed boost, it becomes quieter, more economical, and you don't have to pay too much.

Recommended for:

  • Speed upgrade for daily use such as fast startup and program loading.
  • PC gamers with modest game library.
  • Graphic designers, video editors, and music producers.

HDD: Ample storage capacity Do you want to store entire video collections, photo libraries, or a large game library? An HDD offers suitable capacity and is cheaper than an SSD. If you have an NAS, 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'll 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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