Long time no new SSD, and recently a friend installed, bought a ADATA SU800 256G, M.2 interface, 2280 specifications, I have always been against the SATA master M.2 SSD, since it is SATA master product , honestly buy SATA interface is not very good, have to buy M.2 interface dry. However, my friend's test made me shine, and this little thing is quite powerful. Internet search for a circle of evaluation, the original product is the use of Micron 3D-NAND particles, did not play this kind of particle SSD, so curious to start with a 512G to play, just to the new ASUS B250 motherboard with. Only 256G version of the Lynx version, the price is 548-559 yuan, not expensive, but there is no 512G capacity. Go to the store and walk away, actually have goods, 512G asking price 899 yuan, 880 knife won. Now this year, if you can't buy on the Internet and you have a physical store, you have a very low chance. On the way back, I thought that this low-probability event was actually met by me. So I bought two 5 yuan scratch lottery welfare lottery tickets. ★ SSD is not strong, does not depend on the interface, but depends on the master and NAND ★ Why do I always object to the M.2 solid-state product of the SATA master? Now many ordinary users have been brainwashed by advertisements. They always feel that M.2 SSDs are high-end products and they think that using M.2 SSDs will be one level higher than that of SATA SSDs. In fact, M.2 is just an interface. The key to the SSD performance is the master chip and NAND. If your SSD has an M.2 interface but is still a SATA host, the performance of the SSD is only at the level of the SATA product. Of course, if the model of an SSD product M.2 interface and the model of the SATA interface have the same price under the same capacity, it is completely possible to consider the model of M.2, after all, it is more compact and provincial. ★ Unpacking and Chip Introduction★ Do not talk nonsense, first come out of the box. The packaging is simple. It is still using A-DATA's consistent color matching style. The upper right corner of the box indicates that 3D NAND particles are used, and the lower left corner indicates that this is a product that adopts the M.2 interface and 2280 specifications. The back of the box indicates that the theoretical maximum continuous reading speed of this product is 560MB/s and the highest theoretical writing speed is 520MB/s. In fact, the significance of the maximum sustained read/write speed is not great for SSDs. The key to SSDs is the 4K random read/write performance. Continuous read and write speeds make sense on mobile storage. The side of the box indicates that this product supports LDPC, with cached particles, and uses SLC Caching technology. The SU800 uses a green PCB with a label sticker on the front. This kind of sticker is too easy to tear off, pick up a corner and roll it up and tear it off, and it won't leave any traces. When you put it back, you can blow it with a hair dryer. The back of the SSD is a bare PCB with only one NAND particle. Tear off the label sticker and you can see that the front of the PCB is a master chip + three NAND particles + one cache particle. The main control chip adopts SM2258H newly launched by Huirong SMI. This master controller is currently used on many TLC SSDs. The SM2258 is an upgraded version of the SM2256. It adds support for 3D TLC NAND particles. It also has four channels as well as the SM2256. It also supports NANDXtend ECC technology (known as "It can increase the durability of TLC SSDs more than three times"), and New optimization algorithms can be used to reduce the rate of speed drop after the SLC Cache space is consumed. SM2258 and SM2256 have independent SRAM, ROM and other units, support ONFI 3.0, Toggle 2.0 and asynchronous NAND, support AES 128/256, TCG Opal encryption, support for LDPC ECC (low density parity check) error correction algorithm, support DevSleep power saving mode. In terms of flash particles, the SU800 uses the latest 3D-NAND TLC particles from Micron, numbered 6RB22NW838, with a single-capable capacity of 128GB. The front side of the PCB consists of four total 512GB capacities. The cache is composed of a single South Asian cache, numbered NT5CC256M16DP-DI, which is a DDR3L-1600 particle with CL=11 and a single capacity of 512 MB. Before I played the Lite V5 and Intel 540S are also using Hui Rong SM2258 master, but V5 and 540S uses Hynix 16nm TLC NAND, this time is to look at Micron's 3D-NAND TLC particles than ordinary How strong is the TLC NAND? ★ Performance Test ★ Let's take a look at the actual performance of the ADATA S800 512G M.2 interface. First, the theoretical performance test First of all, according to international practice, the SSD routine four tests: AS SSD Benchmark, CrystalDisk Mark, Anvil's Storage Utilities and TxBENCH. All four softwares have a maximum continuous read/write speed test program. The AS SSD Benchmark can measure random 4K read/write speeds in QD64. Crystal Disk Mark and TxBENCH can measure random 4K read/write speeds in QD32. Anvil's Storage Utilities can Random 4K read and write speeds under QD4 and QD16 are measured. Basically these four software tests, the user can have a general understanding of the basic performance of the SSD, but the test of the four software under the default parameters are only for the test data within the 1G test, although the test time is very It is short and easy for users to accept, but it does not reflect the actual overall performance of an SSD. Comparison of test results summary: In the AS SSD Benchmark test, the A-DATA SU800 512G scored 1128 points, and Anvil's Storage Utilities scored 4733.39 points. Both scores have been flat with many midrange MLC SSDs. In comparison with other SSDs, it is not difficult to find that the characteristics of the SM2258 main control is that the random 4K read performance is relatively normal, but the random 4K write performance is very strong. Second, Aegis SU800's SLC Cache mechanism As we all know, because the write performance of ordinary TLC NAND is significantly lower than that of MLC NAND, it is no secret that almost all TLC SSDs use SLC Cache technology to improve test performance and improve user experience. Cache has also been accepted by a large number of users. A TLC SSD turns out to be a wonderful thing if it does not use SLC Cache. The Agilent SU800 box has also been marked with SLC Cache, but I did not find the SSD with SLC Cache in the test. In specific products, different main control SLC Cache algorithms are different, and each manufacturer's SLC Cache space setting for a model product can also be different. When the amount of data that is continuously written is less than the size of the SLC cache space, the write operation is performed by simulating the SLC, so the speed is very fast; and when the data that is continuously written is larger than the size of the SLC cache space, it is necessary to Data is written into the storage space of the non-SLC cache. At this time, the write speed will be reduced to the actual TLC NAND write speed, so the write speed will be reduced by a toll. We can use HD Tune Pro to estimate the SLC Cache size of an SSD. Remove all partitions before testing and start the "write" test. In the test results, if the SSD write speed suddenly drops after a certain amount of data is written, the sudden drop point corresponds to the size of the SLC Cache space of the SSD. In the test of HD Tune Pro, I found that the writing speed of the ADATA SU800 has been maintained at around 395MB/s, and after the completion of the write-up, there was no expected drop-in-flight condition. So I guess that the SU800 does not use SLC Cache technology, and the actual write speed of Micron's 3D-NAND TLC particles can already approach 400MB/s, reaching the level of many MLC NAND. Then I set the test data volume of CrystalDisk Mark to 32GB. This data volume is enough to burst the SLC cache space of many TLC SSDs, and the test result of A-DATA SU800 with a test data volume of 32GB and a test volume of 1GB is basically the same. It is consistent. Third, simulate the actual use of environmental performance testing PCMARK8 is the closest to the actual use of the environment of the simulation test software, which storage storage device testing is subdivided into games, office, graphics processing and other sub-projects, its test results than the previous four in the test software are more real The overall and comprehensive reflection of the actual performance of SSDs in homes, games, and general office situations. A-DATA SU800 512G's final score actually reached 4994. This score is already the highest score for PCMARK8 in the TLC SSD I've seen using the SATA host, even more than many high-end SATA MLC SSDs. The test data volume of PCMARK8 is close to 50G, which far exceeds the SLC Cache space of many TLC SSDs. Therefore, many TLC SSDs that have performed well in routine tests such as ASS SSD have been exposed on the PCMARK8. The test results of A-DATA SU800 512G are almost equal to those of intel 600P using PCIE NVMe master +TLC NAND, but it also significantly exceeds that of Jianxing Core V5 and Intel 540S which also used SMI2258 master control. This is thanks to Micron. 3D-NAND TLC particles. Chief Living View: 1. The performance of an SSD depends on the master chip and the NAND particles. In the case of the same Huirong SMI 2258 master, the Amitron SU800 with Micron's 3D-NAND TLC particles is significantly ahead of the others in performance. SSD products using ordinary TLC NAND particles. In actual tests, the actual write speed of Micron's 3D-NAND TLC particles reached 400MB/s, which is close to MLC NAND. Although they are all TLCs, the performance of Micron's 3D-NAND TLC particles will be much stronger and worth recommending. 2. The advantage of ADATA SU800 is that the performance is very good and the price is cheaper and the price is outstanding. Taking the 256G capacity version as an example, the price of the SU800 is as low as 548, which is lower than many SSD products using ordinary TLC NAND, such as lower than Toshiba Q200 and Kingston UV400, but the price is basically the same as OCZ TR150 and SanDisk Z410, but the performance is Clearly stronger than these four popular TLC SSDs. I personally think it is worth starting. 3. After the evaluation is finished, what I am most looking forward to is when I can see the SSD products with PCIE NVMe master and Micron 3D-NAND TLC particles coming onto the market. It must be the first time to start with a look at the performance. How strong is it? Thanks for watching. 51V Battery Pack,Portable Battery Box,Portable Battery Bank,Ac Battery Pack Zhejiang Casnovo Materials Co., Ltd. , https://www.casnovonewenergy.com
AData/ADATA Powered by SU800 2280 256G M.2 Notebook SSD Desktop SSD 3D Flash Memory 559 Yuan Tmall Select Direct Link 
