SSDs are gradually becoming a common standard for smartphones and tablets, as well as for laptops, full-size computers, and even game consoles. We tell you what it is, how to choose a good SSD, and what tasks it can be optimally suited for, like online slot games in ऑनलाइन कैसीनो भारत and so on.
What is an SSD?
SSD (Solid State Drive) is a storage device based on memory chips. Unlike other drives, there are no moving parts inside an SSD because flash memory is used instead. Any SSD is just a big flash drive.
Modern SSDs come in two variants: 2.5″ and M.2. It’s impossible to say which ones are the best SSDs. The enclosed models can easily be mistaken for a regular hard disk drive: they look similar, but everything changes when you remove the cover. You’ll find a solid PCB with separate chips, just the memory arrays and controller. There will be metal plates and a movable reading head inside a hard disk.
But it is only possible to distinguish an M.2 SSD from an HDD if you want to. In most cases, such disks have no case at all. And if they do, it consists mainly of a heatsink and is designed for enhanced cooling. It is such a big chip, which has all the identical memory arrays and controller, just located not in the case and with a different connector for connection.
Difference between SSD and HDD
HDD (hard drive disk) is a memory device used for long-term information storage and based on magnetic data recording technology. Like SSD, such memory is non-volatile, i.e. data is not erased from the drive when the power is turned off.
Hard disks got their name in contrast to flexible disks – so at one time called floppy disks because the contents of their plastic cases were easy to deform. With HDD, this will not pass: inside the impressive case (which is always in the design of hard drives) are a few plates of aluminum or glass covered with a particular material. Also nearby is the reading head, which moves over the magnetic disks during operation and thus works with the recorded information.
The difference between SSD and HDD begins to appear in the scheme of work – if hard disks have moving mechanical elements, SSD does not have them. All data are written to separate memory chips, which are part of the chip and controlled by a separate controller.
In what SSDs are superior to HDDs
- Higher data transfer speed.
- Shock resistance due to the absence of moving mechanisms.
- More stable operation due to low sensitivity to the influence of electromagnetic fields.
- Economical power consumption.
- Lower heat dissipation and heating – even in the most productive models.
- Completely silent operation – HDDs can emit both a slight hum and clicks. It does not apply to SSDs with active cooling.
- Smaller dimensions and weight.
However, everything could be better, and even the best SSD disks have serious drawbacks. For many people, these aspects are so important that they have to think about the necessity of buying in principle and switching from hard disks to SSDs:
- High cost.
- “Shelf life” due to the limited number of rewrite cycles – from 150 to 100,000.
- Inability to recover data after damage or improper cleaning of cell contents.
- Performance decreases when working with large files. Low-cost models are particularly susceptible to this.
- Physical fragility of the design and demanding power supply – in case of voltage surges, both the controller and the memory can burn out.
However, even these disadvantages can not cross out the main advantage of SSD – high bandwidth, which helps to speed up the work of even very outdated computers. In addition, in today’s realities, SSDs are becoming the de facto standard: installed in Apple’s Mac and iPhone computers, Android device manufacturers like Samsung and Realme, and developers of PlayStation and Xbox game consoles.
KingSpec 128GB is the most affordable.
Let’s open our SSD top with an inexpensive external SSD. The drive comes in a sturdy aluminum case with an included connection cable, so you can start using it right out of the box. Compact dimensions (10 × 50 × 100 mm) and modest weight (35 grams) will allow you to take the device with you on the road and always have at hand the necessary data, even if they are only about 100 GB. Among the disadvantages of the device can be noted modest read and write performance – 430 and 460 MB / s, respectively.
Samsung 250GB 980 NVMe M.2 is the most reliable one.
This SSD is designed for direct connection to the motherboard inside the case and is suitable for use in laptops and desktops. It has a lifespan of 1,500,000 hours thanks to its 3D TLC NAND memory type. The advanced nickel-coated controller ensures stable performance, while the heat sink plate prevents components from overheating. NVMe technology improves responsiveness and performance. The latest firmware version boosts write speeds to 1300MB/s and read speeds to 2900MB/s, which is impressive. However, the model is still inferior to its big brother, the 970 Evo Plus. But even to work with such speeds will require a motherboard with an M.2 PCI-E 3.0 connector, which is rare in budget computers.
Western Digital Green 240GB is the most affordable from Western Digital.
Western Digital is revered among hard drives and SSDs as the iPhone is among smartphones, and for a good reason: over the years, the company has earned an excellent reputation for product quality. That’s why no list in the “Best and Most Reliable SSDs” format is without them.
The 240GB WD Green SSD has a SATA III interface and measures 100 × 70 × 7 mm, allowing it to be installed in any form factor computer. The 240GB WD Green has a maximum read speed of 545MB/s and a maximum write speed of 465MB/s. These aren’t the most astounding numbers even in this price segment, but in the case of the Green model, this is offset by its reliability, with an MTBF of over 1 million hours.