How to choose an SSD in flash sales

What SSD Should You Buy? Usually, we ask you to follow our best storage guide. But during flash sales, such as Black Friday or holidays, recommendations based on regular prices are somewhat irrelevant because the best deals often go to lesser known drives (models, capacities, etc.), which may be worth buying a healthy product . Discount.

In this scenario, you may be asked many questions, including... Is the quality of QLC as good as TLC? Do SSDs Really Need DRAM? Why are SSDs different shapes? Does SSD Capacity Affect Its Performance? This short guide will walk you through the basic differences between the types of SSDs in use, so when you see a solid state drive for sale, you know if it's a good buy for you. NVMe vs. SATA SSD

SSD The interface determines not only the transfer speed, but also whether you can install it on your system. For years, SSDs have used a SATA interface similar to hard drives, or similar in shape/shape to the 2.5-inch drives used in laptops; Or they used the more compact mSATA form factor, which was similar to the Mini PCIe used by devices like . as a network card.

Since SATA 3.0 has become the maximum transfer speed of about 560 Mbps, the NVMe interface is effectively replacing it and it connects directly to the CPU or via chipset.Motherboard with multiple PCIe lines. For much higher speeds. How to Choose an SSD for Flash Sales

Crucial MX500 is almost as good as a SATA drive. If you want an NVMe drive, Western Digital Black SN_750 now offers gr. Eat value.

Extension Card vs. M.2 SSD

Most SSDs today, SATA and NVMe, use the M.2 factor model, which supports up to four PCIe lines for NVMe SSDs.

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With M.2, PCIe 3.0 SSDs allow transfer speeds of up to 3500Mbps, while PCIe 4.0 SSDs have speeds of up to 7000Mbps, as long as the CPU The mainframe and your motherboard are faster than the 4 it supports. public interface.

Most M.2 SSDs have an M-key slot that supports up to four PCIe and SATA lines. Some older motherboards have an M.2 slot that supports the B switch and only two PCIe lines in addition to SATA.

Most SSDs that use either SATA or two PCIe lines, depending on both compatibility keys, have two cuts. Although... How to choose an SSD for flash sales

All M.2 SSDs are 22mm wide. The most common has a length of 80 mm and is called "2280". Laptops, mostly ultrabooks, sometimes have space only for 42mm solid-state drives called 2242s. Tablets like the Surface Pro 8 use 30mm ("2230") hard drives. 60 mm ("2260") SSDs are widely supported, but not common. Major devices do not support a small number of 110 mm ("22110").

As an alternative to M.2, some PCIe SSDs are in the form of additional cards that look like small graphics. card and installed similarly. The larger form factor can make up for the lack of PCIe 4.0 motherboard support with eight PCIe 3.0 lanes, or it can accommodate a more powerful console that needs better cooling. Another alternative is a 2.5-inch U.2 SSD that can be connected to an M.2 slot using an adapter cable, and the AN1500 Western Digital is probably the fastest SSD to connect to a PCIe 3.0 motherboard only. or the central processing unit. If your system supports PCIe 4.0, Samsung 980 Pro is the best choice. How to choose an SSD for flash sales


In modern SSDs, flash chip cells consist of surfaces that each level stores (0 or 1) slowly. data. Most SSDs today use three-level cells (TLC) or four-level cells (QLC). The term "multi-level cells" (MLC) was originally used to describe the two-layer cells, but the term "3-level MLC" used by Samsung simply means TLC.

Adding skins allows cells to store more data in the same physical space, but also slows it down significantly. The good news is that thanks to clever caching mechanisms, you won't notice right away. How to choose an SSD for flash sales

Uses more drives Solid state disks part of their free storage space as a default single-level cell (SLC) cache by writing only to the first level of cells, and when the cache runs out, the drive is downgraded to its "native" write speed. In the case of QLC, this speed may be the same as that of a hard disk drive. p>

Whether it has QLC or TLC, the less space you have on your hard drive, the smaller the SLC cache, and when the maximum can be, the shorter it is to maintain write speed.

If it's already for one if you need an 8TB SSD, then Sabrent Rocket Q is the best choice for you. If you can use it with 4TB or less, the company's Rocket 4 Plus will work more consistently thanks to its TLC flash. The file is actually stored on flash chips, and most hard drives rely on their own RAM — usually 1MB of RAM for every gigabyte of storage — but this isn't always the case.

NVMe SSDs are often used by hosts. Buffer memory (HMB) to use some system RAM to do this. On shorter M.2 SSDs, this can be done to save physical space. On large SSDs, the goal is to save money. How to choose an SSD in Flash sales

The disks that use HMB is almost empty, the lack of internal DRAM does not hurt its performance that much. However, if you store hundreds of gigabytes of data on it, the speed of finding files can be several times slower (but still several times faster than on a hard disk).

With a SATA SSD, everything is the same look. more complicated. Instead of main system RAM, SATA SSDs without DRAM use their own flash chips, which are much slower than any other type of RAM. Additionally, storing a constantly changing index of all your data on flash chips can cause them to get corrupted faster and ruin the life of the device. For this reason, we can only recommend a temporary SATA SSD solution without DRAM.

If you are looking for a short term NVMe drive, DRAM Without DRAM Sabrent is your best choice. Instead of buying a SATA drive without DRAM, you should look for something like Western Digital Blue SSD (2018), which is not far behind the best SATA drives and is often cheaper in terms of sales. 250 GB versus a 500 GB SSD. Last year, the demand for low-cost computers to work from home made a 250GB SSD almost as expensive as the 500GB versions. However, during flash sales, a 250GB SSD can suddenly cost about the same as a drive with a capacity of twice each gigabyte. The question is, would a 250GB drive be worth it in this case?

This may not be the case for two reasons: 1) Even if they use the same percentage of free space as the SLC cache. With higher capacity drives, smaller drives still have a smaller SLC cache. 2) Since they use fewer flash chips, they may not take full advantage of a console that is designed to write on multiple chips at once. How to choose an SSD for flash sales

on NVMe drives, You might discover right away: For example, the 250GB version of the Samsung 980 (non-professional) is rated for a maximum write speed of 1300MB/s, while the 500GB version is rated to double that speed.

On SATA drives, they can only be mounted after knowing the difference in the SLC cache. Both the Crucial MX500 250 and 500 GB versions start at a long write speed of about 450 MB/s, but when the SLC cache is full, the 250 GB version shrinks to 200 MB/s, while the 500 GB version increases. It remains reliable at 400Mbps. < p> If you want a 500GB SSD drive at a reasonable price, consider the Samsung 980 (non-Pro). Instead of buying the 250 GB version, you should look for something similar to the 500 GB version of the Blue SN550 Western Digital for the same price.

How to choose an SSD in flash sales
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