SSD or HDD?

When asked if the SSD or HDD is a hard disk, choose for your computer, there is no definite answer. Each of these media has its own advantages and disadvantages, which will be indicated in this article. Probably, this comparison will benefit the SSD, since it is a modern high-performance alternative to the hard disk and has a tendency to subsequent improvements and corrections of deficiencies.

The principle of the HDD and SSD

A hard disk (HDD) is a mechanical device, it consists of magnetic disks, information from which is read using a special read head. Inside the hard drive is a constant movement. That is why this medium produces noise and buzz inside the computer during its work, which is even more pronounced in earlier models. Such an organization of the disc does not tolerate vibration, not to mention the possibility of a shock or a fall. The magnetic disks located one above the other are spinning and very prone to damage, and also runs a lever with a carriage and a read head. All this subtle mechanical work organization is very fragile. Upon impact, the reading head damages the disk itself, and if it is damaged, the information will disappear without a trace.

The mechanical component of the HDD mainly consists of metal, although it is lightweight metals, which still makes such a storage device more difficult, in comparison with SSD. Any mechanical organization of data transfer is many times slower than electronic. Spinning the discs, moving the carriage, working the read head, needing to start them and only then searching and working with information characteristic of the hard disk – all this makes working with data time consuming compared to running electrical connections along direct paths without resorting to missing moving mechanics in the design of the SSD.

What is better for laptop SSD or HDD? Many manufacturers of this laptop have been using SSD instead of hard drives for a long time. If the hard drive is installed in a laptop, then the battery’s working time will be less long than when organizing the work of information stored on a solid-state drive. Since mechanical movements are produced in the HDD, it heats up quite strongly due to the friction process that occurs. Frequently worked for a long time hard drives require the installation of additional cooling, which will increase several times the computer’s power consumption, how much noise.

Inner view of a hard disk drive Seagate Medalist ST33232AHard drive without an enclosure

A solid-state disk (SDD) is actually not a disk. This is an information storage device, made in the form of a microcircuit with flash memory, mounted on the board. Flash memory is completely silent because there is nothing to rotate and buzz in this device. For a solid-state drive, vibration and shocks during operation are not as terrible as a hard disk, since there are no mechanically performed actions in them. All work on this disc is done electronically. In time stress testing, working SSD – he withstood everything: shaking, hitting, falling without losing the quality of his work, showing a high-reliability rate.

A solid-state drive has a lightweight compared to a hard disk since the weight of a working board with a microcircuit is much less than the weight of metal parts that organize the work of a computer hard drive. The solid-state drive has an excellent speed of reading and writing data. Electronic connectivity provides SSD with a data transfer speed advantage over a hard drive.

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Which is better?

If we proceed from the principle of work organization, what is the best SSD or HDD? The answer lies very close, and the advantages of a solid-state “disk” benefit from a hard disk with a score of 6: 3 and look like the following list:

Silent operation;
-Vibro strength, impact strength;
-Ease;
– Higher working data rate;
-Less power consumption;
– The smaller temperature of heating during the work.

In the second round, we identify the shortcomings of the SSD and how they can be compensated.

-High price. This item is standard for new generations of any components. The problem has a passing character.
– It is not always possible to recover information in case of breakdown. If during a voltage surge on a hard disk only the controller burns and the information remains on it, then the SSD will completely burn out in such an incident, and with it all the data. This minus is solved by connecting the PC to the UPS or a stabilizer, which will help with an external voltage surge, or you need to be more careful in choosing components for a computer, because the jump can be internal, for example, due to an unstable power supply.
-The cycles of rewriting the cells of the flash memory included in the SSD are limited to an average of 10,000 thousand times. The solution to the problem may be in the purchase of a solid-state drive with a large number of cycles. If you cannot afford such a purchase for financial reasons, then the solution will be to understand that with a small number of cycles, you will need to buy a new SSD in about three years. After a couple of years, you’ll have to keep track of how many cycles are left in the drive. This minus SSD is very significant and there is still hope for programmers who can figure out how to change the algorithm for counting cycles, and extend the life of SSD.

What to choose is an SSD or HDD that is expensive and lightning-fast, which is not so fast as capacious, less expensive, it is up to the buyer to decide, but many users already use both drives simultaneously, SSD for system partition/disk and HDD for storing information.

Crystal Disk Mark

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Worldbench Comparison

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