When we shop for a new computer or laptop, we want a machine that meets our needs and has room for our files and programs. Often, a computer starts to slow down because its storage is almost full, and we need more space. That raises the question: which drive is best for your machine? First, you need to understand how each technology works; then you can choose the model or brand that suits you.
And if your SSD ever fails with important files on it, Bot’s SSD data recovery starts with a free diagnosis.
Storage technology keeps evolving, and today there are two main ways to store your files: the hard disk drive (HDD) and the SSD (solid-state drive).
What’s the difference between an SSD and a hard drive?
SSDs and hard drives are both data storage devices, and although they serve the same purpose, they work very differently. Once you know what each one is, the differences are easy to understand.
What is an SSD?
SSD stands for “solid-state drive”. It gets this name because it has no mechanical or moving parts: it works entirely with electronic components, which is why it is faster, smaller and uses less power than a hard drive. Data is stored in flash memory cells, the same kind of memory used in cell phones, tablets and newer computers. A controller connects the memory to the computer and manages the cells; in each cell, data is stored as an electrical charge trapped in a “floating gate”, insulated by layers of silicon oxide.
SSD advantages
Speed
SSDs are much faster, so the operating system boots sooner and programs and files open more quickly than on a conventional hard drive.
Quiet
Because they have no mechanical parts and only access flash memory, SSDs are completely silent.
More resistant
Because it has no spinning platters like a hard drive, an SSD is far more resistant to shocks. And since it is not affected by magnetic fields, it does not suffer file loss or corruption for that reason.
Low energy use
An SSD uses less power than a conventional hard drive. This is especially important for laptops, because the battery lasts longer.
SSD disadvantages
Higher price
The price per GB is higher for SSDs, because the technology is newer and offers all the advantages above.
Limited write endurance
Although SSDs are physically tougher, every write wears the memory cells a little, gradually reducing their ability to hold an electrical charge. That is why each SSD is rated for a limited amount of data written (the TBW figure given by the manufacturer), although in normal use it usually lasts for many years.
Fewer high-capacity options
Compared to hard drives, there are fewer high-capacity models on the market, and those that exist cost considerably more.
What is a hard drive?
HDD stands for “hard disk drive”, usually just called a hard drive. It consists of one or more spinning platters, where the data is stored, and a mechanical arm that carries the read/write heads. Each platter, which can be made of aluminum, glass or ceramic, is coated with a magnetic material, and the heads fly just a few nanometers above it. The heads record data by magnetizing the surface as the platter spins, and the information is retained even when the device is switched off.
Hard drive advantages
More affordable
Conventional hard drives are cheaper and give you more storage capacity for the same money.
Greater storage capacity
Hard drives come in many sizes, from a few hundred GB to more than 20 TB.
Hard drive disadvantages
Older technology
The hard drive is the older technology: it came first and was already present in the earliest computers.
Slower reading and writing
Because it works mechanically, it takes much longer than an SSD to access or modify data. Read and write speeds are usually between 80 and 250 MB/s, depending on the model – far below those of an SSD.
Noise
Because a motor spins the platters and the arm moves the heads to read and write, you can hear a hard drive while it works.
Fragile
Because the heads read the spinning platters from a tiny distance, a sudden movement or a drop while the drive is running can easily damage it and cause data loss.
SSD or hard drive: which is better?
Anyone buying a laptop or computer should ask this question, but there is no single answer, because everyone’s needs are different. If you want speed and better operating system performance, an SSD is the best choice. If you need lots of storage at a more affordable price, a hard drive will do the job.
How do I know if I have a hard drive or an SSD?
Physically, they are very different: a hard drive contains platters and is larger and heavier, while an SSD is smaller, thinner and lighter, with only electronic circuits inside. In Windows, you can also check without opening the computer, in Task Manager under the Performance tab.
Should I replace my hard drive with an SSD?
Replacing your hard drive with an SSD depends on your needs and budget. If you are considering it, first check that your computer supports an SSD, as there are different form factors and connections. Before deciding, do your research or ask a professional for help, because the switch affects your files and operating system: back up or clone the drive before replacing it.
If your computer or laptop is compatible, an SSD can give you much better performance than you have now. You can keep the hard drive for storing less important files or programs, which also helps extend the life of the SSD.
SSD or hard drive for gaming?
Games handle huge amounts of data, and an SSD makes them load and run faster, with less stuttering and without slowing down the rest of your PC. So an SSD is the best way to improve the performance of your games and your computer as a whole.
Hard drive or SSD for laptops?
It is worth noting that hard drives are being phased out of laptops, and many models now ship with SSDs only. Still, it is up to each buyer to choose, since both have advantages for different needs. A cost-effective compromise is to combine the two: an SSD for the system and a hard drive for your files.
SSD and hard drive: can I use both together?
Yes, you can use both together, but first check that your computer or laptop has room and connections for both drives. This gives you a faster PC with more storage capacity, combining the advantages of both technologies.
If you decide to use both, set them up properly to get the most out of them. We recommend installing the operating system and the programs you use most on the SSD, and keeping your photos, videos and other large files on the hard drive.
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Conclusion
In short, both devices do the same job, but each has its own characteristics, and it pays to understand them so you can choose the one that best meets your needs.
If you want speed and performance, a laptop or desktop with an SSD is the way to go. If you want to store lots of files at a more affordable price, a higher-capacity hard drive is a good investment.
Whether you use an SSD or a hard drive, always leave some free space on the drive instead of filling it to the limit, because the operating system needs free space to work properly, and running out of it can cause slowdowns and crashes.
Need to recover the files? Bot runs a free diagnosis in its lab: see our SSD recovery service.
