Solid State Drive (SSD) has passed as a quite a long time since the Solid State Drive (SSD) has become a required component of the desktop and notebook PC. Unlike the past that the price of SSD is overwhelmingly formed in HDD, it is now possible to purchase a good quality SSD in the price without a burden, and it is possible to purchase a good quality SSD, but the main disk, and even the external storage medium is also popular for the SSD. I lost.

Now, you are also SSDs that you use, but it is never easy to identify which features that certain products have appropriate features and performance. Unlike CPUs, graphics cards, such as CPUs, graphics cards, which can choose the appropriate product to me through a variety of simple compatibility tests and benchmark data, and SSDs are very difficult for SSDs to understand other performance unless they are very interested in hardware.

So I prepared. I will see how to see the SSD's specifications and select the ssd perfect for me. Just look at the performance elements of the SSD that the head is as easy to see as much as possible. I do not know how to choose the products that others recommended by others, but what about the smart and smart consumers who can directly see the product you need directly?

■ 1. Form Factor - Can I be installed on my mainboard? The form factor (specification) of the SSD is largely divided into three. Currently used is the most popular, M.2 SSD , which is directly connected to the main board , the disk type, which is mainly used on the spherical PC or laptop 2.5 inches SSD , notebook and tablets * MSATA There is type.

M.2 The specification is easy to connect directly to the main board dedicated slot, and it is easy to use the power supply and data transfer cable, and it is also excellent in convenience of installation. Most of the mainboards that are released these days are supporting M.2 slots, so if you are not an old PC or a user that uses a notebook, M.2 SSD is made.

The SSD of the M.2 specification is two communication methods called SATA (AHCI) and NVME . It is recommended that the NVME method provide a faster speed, so it is recommended that you choose NVME method, not in special cases, such as compatibility issues. In recent years, NVME SSDs can also be purchased in a similar amount as a lot of price and other communications products.

However, M.2 specifications, especially NVME communication products, are highly high than high performance, and we recommend that you mount a separate heat sink for a high-performance, high-performance, high-performance. Most of the main boards that have recently launched, most of the heat sinks are included by default. For the emergency main board, you can purchase the SSD heat sink for sale on the market.

2.5 inch SSD is the SSD of the disk type that needs to connect the data cable and the power cable separately as the HDD. Because M.2 SSD (NVME) rate drops, it is suitable for users who do not have M.2 slots without M.2 slots on the motherboard. Common hard disk (HDD) and installation method are the same.

MSATA Type is a standard used for tablet PC or laptop. There is nothing to choose from if you are using only the MENE board that you are using to support MSATA specifications. I think there's this specifications.

■ 2. PCIE 4.0 - My CPU is Intel 11th generation, Rizon 3rd generation or more

If you are using the Intel 11th generation, the third generation, or the CPU released since then, let's use the PCIe 4.0-based M.2 NVME SSD. PCIe 3.0 products and pricing differences are not large, but sequential reading speeds are about twice, 4K random reading speeds are about 1.6 times.

If your PC or notebook does not support PCIe 4.0, it will only be less than half the speed of the PCIe 3.0 product. Let's make sure you choose to suit your usage environment.

■ 3. Capacity - With the largest capacity on the line permitted by the budget!

In the past, as soon as the price of SSD has risen sharply, it was efficient to select a product of 1 TB or less if the price of SSD has risen sharply. There was a way to install the OS and key programs on the SSD and the rest were installed on the HDD to reduce the budget to assign to the SSD.

However, the price is stabilized with the addition of SSD, and now the price of the capacity is often the most advantageous in terms of price. If you look at the price per 1GB, the 1TB product is the cheapest. (or more product is more affordable) If you have a special purpose for using SSD or not lacking a budget, At this point, it can be said that it is the most efficient when I looked at the caustic rain.

In addition, as the structure of the SSD increases, the physical data cell is also increased. Therefore, as the same product is the same product, the larger the capacity, the more improvement of the speed and stability, so that it is advantageous to purchase a large amount of product as much as possible because it is improved by **.

■ 4. Speed - Primary speed, IOPS, is not it fast?

The performance indicators of SSD are largely separated by 'sequential speed' and '4K random speed' . Most users buy products in consideration of the 'sequential speed', which is marked as the largest unit of them. This can be an answer to choosing a quick product, but it can be a trap for consumers who want fast and efficient products.

'Sequential speed' means the maximum speed to reach one large file. If you are a user who frequently sends a single file of a huge capacity, such as a professional class image or project file, it is recommended that you choose the product considering the sequential speed. I mean, I do not need to buy a product that boasts a product that is a generic consumer that is very unlikely to deal with a tremendous single file, but it does not have to buy a product that boasts a highly fast sequential speed.

'4K random speed' is marked as 'IOPS' in the spec sheet. In the task of quickly copying random small files, 4K random speed is important than the sequential speed described above. It is frequent to have a small files such as 100 MB and 500MB, rather than copying one of the capacity of more than 10 GB of capacity of more than 10 GB from general consumer position. In addition, the operation of the operating system (Windows, etc.) is also that the KB capacity unit is the same as the KB capacity unit, and the actual SSD feeling of the actual SSD is likely to think that '4K random speed' is left and right ** (General consumer standards) )

Simply, for example, if you compare the 'maximum reading speed is 8,000 MB / sec, 4K random reading speed is 100k' and 'maximum read speed 1,000 MB / sec, 4K random reading speed is 500K' In the latter side, it will mean that the performance is much better. This is, of course, as an extreme example, the products that are actually selling are mostly 4K random speeds, if the sequential speed is fast.

** ■ 5. Memory - Anyway, it's not a QLC.

NAND FLASH (NAND Flash) Memory is mounted on the SSD. It is a non-volatile memory that maintains data even if the power supply is interrupted. Depending on the method of storage, QLC, TLC, MLC, SLC, SLC, and relatively high capacity design is easy, and QLC and TLC memory is most widely used inexpensive. It is also why we have been able to purchase SSDs at a non-burdened price.

Of course, it is not enough to say that MLC, SLC is not lacking in MLC and SLC in the lifetime and stability. But Item may not be considered largely considered in the usage pattern of general consumers. If you are not a person who copies the data to TB without a day, it is not a person copying the data to the TB, but it has developed a memory, controller technology, which has been developed, even if you purchase cheap products, regardless of the kind of NAND flash.

The 'MicroRon Crucial MX500' SSD of the above picture is also using TLC memory, but MTBF (Mean Time Between Failure, average permeatable time) is 1.8 million hours. This can be interpreted in the sense that if there is no separate issue in the product with the average permissible time measured by the manufacturer. It is a lifespan that is not much worrying even if the error range is wide.

■ 6. Controller - What is this again? Is it important?

The controller is a part that is responsible for the most important task on the SSD. Simply describe, as the name of the "controller", it controls all operations such as reading, writing, and lifetime management, and controls the SSD. If the stability of the SSD, the stability of the SSD is a large amount of dose, the stability of the SSD, the fastested SSD is a fastest,

A variety of manufacturers are producing controllers, representing 'Marvel' controllers and 'Samsung' and 'MicroRon' self-controller, which are famous for its excellent performance and stability. The controller of 'Silicon Motion' famous for the central controller manufacturer also improves recent stability and is okay.

The controller's DRAM is also important. Damless without DRAM If the dignity is used as a general pattern, no matter how fast is used as a common pattern, it is significantly reducing the sequential speed and random speed compared to the controller that contains the DRAM. DRAM

● SSD checklist

1. Select a form factor that can be mounted on your own motherboard. (M.2 / 2.5 inch / msata)
2. If you are using the CPU released since the Intel 11th Generation OR Ryzhou 3rd generation, you will recommend M.2 NVME products based on PCIe 4.0 .
3. Select the maximum capacity product within the budget. Usually 1TB products have excellent avoidance.
4. General user standard 'sequential speed' '4K random speed' is more important.
5. If you are a generic user standard, the same price is a product, let's buy a large amount of products than speed.

1. Memory types such as QLC, TLC do not have to worry.
2. Check that the controller type mounted on the favorite product, the controller is mounted on the controller. (Controller related to the controller is often not listed in the spec sheet, so check it through Google Search.)