In the era of solid-state drives, Samsung's brand storage position in the industry can be said to be unshakable. Whether it is the traditional SATA protocol SSD or the fast-growing NVMe SSD, it has a very high market share and user reputation. Samsung is in the NAND technology. In terms of research and development and production, it has always been at the world-class level, especially 3D NAND, which is far ahead. With the continuous upgrading and iteration of NAND technology, its advantages in storage media are bound to be further magnified.
Samsung is also the only manufacturer in the industry that can produce all the components of SSD. Today, I take Samsung's latest NVMe SSD 970EVO Plus as an example to explain the advantages of its products and why SSDs are still priced at such a price today Can you worry about sales?
The 970EVOPlus is the latest NVMe SSD sold by Samsung. Samsung announced that the fifth-generation 3DV-NAND stack layer has been upgraded to more than 90 layers, and it is suitable for processing 4K content editing, 3D modeling and simulation, and large-scale picture games. Targeted optimization of the required tasks can provide a user experience that competing products cannot.
PHOENIX master

As an upgraded product of the 970EVO, this 970EVO Plus uses the PHOENIX main control chip. Considering the heat consumption of the SSD, Samsung added a nickel coating to the main control surface and covered a layer of copper foil on the NAND chip, so that the SSD's The heat dissipation has achieved the best state that can be achieved at present, so that the temperature can be maintained at a reasonable threshold during high-performance work, so as to maintain stable performance.
The external cache benefits from Samsung's advantages in the production of storage media and SSD components. This end-to-end approach can make products deeply optimized, and has its own unique and irreplaceable advantages in terms of performance, reliability, failure rate, etc. .
How to judge the quality of an SSD, that is, whether it is worth buying, generally speaking, we will start from three main aspects: performance, lifespan, and reliability.
First of all, in terms of speed, the current SSDs on the market perform very well in the test of read and write speed, but they often have to be discounted in actual experience. The main reasons for this phenomenon are the quality of the basic hardware and the overall optimization of the SSD. , it is easy for SSD to have extremely high speed in a short period of time, but it is difficult to maintain it under long-term use, because the quality of hardware plays a decisive role here, and there are only a few storage manufacturers with flash memory manufacturing capabilities on the market. , so this is the main reason why Samsung manufactures all components in-house, and only in this way can the stable performance of the SSD be guaranteed.
Sequential read and write speed
The CrystalDiskMark test software covers sequential read and write, random read and write performance of 512KB and 4KB packets, and 4K random performance with a queue depth of 32. The queue depth describes the maximum IO value that the hard disk can activate at the same time. The larger the queue depth, the higher the actual performance.
We can see that the 970EVOPLus's continuous reading and writing performance has reached 3558MB/s, and the writing performance is 3293MB/s. When the queue depth is 32, the reading and writing performance is still maintained at 2251MB/s, which can be said to be very strong.
Compared with the continuous read and write speed of SSD, the actual 2613MB/s write speed is often more important in practical applications. The author chose a video file with an actual size of about 37G for the write test. Sure enough, the overall performance is quite impressive. It only took less than 14 seconds to write a 37GB file. I want to ask who else!
In addition to the basic hardware quality, the overall optimization of the SSD is also critical to the user experience. Samsung's SSD benefits from the self-production of all components, so it can optimize the optimization and increase the compatibility of each component, so that the SSDs get the most out of their performance.
Therefore, Samsung's NVMe SSD can come out on top, because the hardware quality has passed the test, and all components are produced by itself, which can achieve deep optimization between components, fully explore the performance of SSD, and enable it to play for a long time and stably.
In addition to performance, what we care about most about SSDs is the lifespan. Those who are familiar with SSDs know that it uses NAND flash memory as its storage medium. Because of the underlying storage principle of NAND flash memory, its lifespan is inherently limited. , its life is also the number of writes in the conventional sense, that is to say, when an SSD is written to the entire disk for a certain number of times, its life will be exhausted, but there are many reasons for the increase in the number of writes. , such as write amplification, etc....
At this time, the quality of the main control algorithm and the flash memory chip is very important. For the same type of flash memory chip, the lifespan of the 3D vertical stack is much higher than that of the 2D plane. The number of writes of different flash memory chips of MLC, TLC and QLC is also different. The quality of the first-line mainstream original chip is better than that of the non-original chip. Excellent master control algorithms can make SSDs have a longer service life, and minimize the damage to SSD life caused by useless consumption such as write amplification. Samsung's master control chips are all used in their own SSDs, so the compatibility and overall algorithm are naturally better. reliable.
What specific optimizations has Samsung made for the 970EVO Plus?
Due to the underlying principle of solid-state drives, any SSD will experience performance degradation after a certain period of use. Compared with the peak speed performance, the stable state after a period of use is the essence of SSD. time of strength.
Generally, the test for the stable state of SSD is to exhaust the cache, and then observe the speed and stability of the stable state. In addition, we should also pay attention to whether the value changes sharply and frequently. This is the so-called IO jitter, which will cause The system freezes and does not respond, and Samsung has optimized the SSD extremely well in this regard. The performance in a stable state is very stable, and there is no IO jitter.
The performance in terms of heat dissipation is also remarkable. The 970 series has almost achieved the ultimate in heat dissipation technology that can be achieved by current SSDs. Adding nickel coating on the controller and covering copper foil on the controller and NAND chip help it achieve physical Heat dissipation, even without external cooling assistance, can still operate stably without exceeding the temperature threshold, and the thermal management program is written in the firmware to ensure that the temperature does not exceed the threshold.
In addition, it is also equipped with Magician management software to detect the SSD in real time and keep its performance in the best state at all times.