Although the physical elements of solid-state drives & hard disc drives are similar, they store data in completely different ways. Each type of drive has pros and cons and selecting which is best for you depends on how you use your computer. Our tutorial explains how each storage drive functions and what it represents for you.

What is HDD?

The hard disc drive technology is well-known and well-proven. Hard disc drives have been present for more than fifty years, with storage capacity and physical size continually growing. For reading and writing data, HDDs use rotating discs or platters.

What is SSD?

Solid-state drives depend on flash memory to provide improved performance and longevity. Because your hard drive has so many microscopic, moving elements – magnetic cores, spindles, as well as spinning platters — something can go wrong and lead you to lose important data. SSDs are much more long-lasting and operate cooler while using less energy because they have no moving parts.

How Hard Drive Work?

 Magnetically sensitive discs, an actuator arm that has a read and writes head for each plate, alongside a motor to spin the platters as well as move the arms make up a hard disc drive. There’s also a controller and firmware that communicates with the rest of the system and informs the hardware what to do.

Each platter is divided into tracks, which are concentric circles. Tracks are separated into sectors, which are logical units. One distinct address is created for each track that will be used to manage and find data. The data is written to the closest available storage location. Before the data is written, an algorithm processes it, allowing the firmware to identify and repair problems.

The platters rotate at a predetermined speed (4200 rpm to 7200 rpm for consumer computers). The read/write rates are related to these speeds. The faster a hard disc can read and write data, the higher the default speed.

How does SSD work?

SSDs are similar to huge USB devices in that they share the same basic technology. Solid-state drive technology uses NAND, which is a type of flash memory. Floating gates are arranged in a regular grid that is then divided into blocks. The size of the blocks varies, but each row of the grid is referred to as a page.

An SSD controller has multiple functions, one of which is to keep track of where information is stored.

SSD Vs HDD Speed

SSDs are substantially faster than HDDs in terms of speed since they lack the electrical circuitry and mechanical parts that HDDs do. A standard 7200 RPM HDD has a read/write performance of 80 to 160 MB/s, whereas a typical SSD has a read/write performance of 200 to 550 MB/s, making it a great choice for superior performance.

Difference Between HDD and SSD

The following are the distinctions between SSD vs HDD.

Drive (hard disc)

  • The read and write times on an HDD are longer.
  • HDDs have a longer delay.
  • I/O activities per second are limited on HDDs (IOPS).
  • Fragmentation is possible to occur with time and with bigger files stored on an HDD.
  • Available in a variety of capacities.
  • Hard Disk Drive is the abbreviation for the hard disc drive.
  • Slower in reading and writing data
  • A hard disc drive (HDD) is heavier.
  • Because of fragmentation, the functionality of HDD drives declines.
  • Because HDDs have moving parts, they are exposed to breakdowns and damage as a result of vibration.
  • The arm, for instance, is made up of moving mechanical parts on the HDD.
  • The hard disc drive (HDD) is more traditional and older.
  • Mechanical movements in HDDs can cause noise.
  • For desktops and laptops, HDDs are typically 3.5′′ and 2.5′′ in size.
  • There are moving parts and magnetic platters in the HDD. They are more likely to fail when they are used more frequently.

SSD (solid-state drive)

  • SSDs have faster read and write speeds.
  • SSDs have a shorter latency than HDDs.
  • More I/O activities per second are supported by SSDs (IOPS).
  • An SSD drive does not suffer from fragmentation.
  • A solid-state drive (SSD) has a limited storage capacity.
  • Solid State Drive is the full name of this drive.
  • Much speedier when reading and writing data.
  • Because SDD drives do not have revolving discs, spindles, or mirrors, they are smaller than HDD drives.
  • Fragmentation does not affect SSD drive performance.
  • SSD drives can withstand vibrations of up to 2000Hz, which is higher than HDD drives.
  • Only electronic components such as ICs can be found on an SSD.
  • A solid-state drive (SSD) is a modern form of storage drive.
  • SSDs don’t make any noise.
  • SDDs come in three sizes: 2.5 inches, 1.8 inches, and 1.0 inches, and they increase the amount of space accessible in a computer, particularly a desktop or server.
  • No moving parts and they are less inclined to fail if they are used more often.

Advantages of HDD

  • It has a great capability for storing.
  • So if the computer is turned off, the recorded items are not lost.
  • It can’t be lost because it’s fixed on the computer.
  • Computers can easily converse with them.
  • written documents, photographs, and videos, are stored among other things.
  • A hard disc drive (HDD) may store operating system and software files.
  • It has a compact footprint and is easily portable.
  • They are less expensive.

Advantages of SSD

  • The access speed of an SSD can provide 100 times the speed of HDDs.
  • Because SSDs are more mobile-friendly and therefore ideally adapted for constant travel, they contain lightweight parts or moving elements.
  • SSD drives are robust and long-lasting.
  • SDDs store data in flash memory, which ensures greater reliability.


A robust backup plan is necessary whether you’re using an HDD or an SSD because every disc will eventually fail. A local backup should be paired with a secure off-site backup to meet the 3-2-1 back – up plan. We hope this article has provided you with some insight. As always, we welcome your comments and questions, so go ahead and ask! If cost is not a concern, we suggest SSD. They are extremely fast, durable, and dependable. If your application requires a big amount of capacity with little R/W (for example, archiving/backups), HDD is the way to go. Even though SSD is our first choice.