As PCIE NVMe-hosted SSD products continue to cut prices, the price has become more and more close to the traditional SATA master control products, and many of the original SATA MLC high-end SSDs are directly suppressed to the mid-range market. Intel's new B250 chipset also directly adds an M.2 interface to the PCIE 3.0 X4 bus, which reduces the threshold for users to use the PCIE NVMe master SSD product, enabling low-end and mid-range motherboard users to enjoy the PCIE NVMe. SSD brings high speed experience.

In the current SSD market, the high-end market is dominated by PCIE NVMe MLC products. These flagship products are characterized by high performance and high prices; the low-end market is dominated by TLC products using SATA master control, and these products have low prices. As a feature, the price is low, and the performance is also an entry level; the mid-market is relatively confusing. There are both MLC SSDs for SATA masters and TLC SSDs for PCIE NVMe controllers. The relatively high, such as the new 600P intel in the previous period, has become a more popular product, I often see this product in many forums recommended configuration. The Intel 600P uses the 2260 host + Intel own 16nm 3D TLC flash memory chip of Hui Rong SMI. The actual performance is only equivalent to high-end SATA MLC products. Recently, A-DATA has also introduced a SX8000 SMI 2260 main control product, but with Micron's 3D-NAND particles. I had previously experienced the high performance of Micron's 3D-NAND particles under the SATA master control, so I quickly started with an SX8000 to see what performance the PCIE NVMe Master+3D-NAND chip can achieve. I searched the Internet several times and did not find a detailed evaluation of the SX8000. It seems that this time I want to be a mouse.

Found a lot of e-commerce shop, SX8000 very few goods, SX8000 self-operation in Jingdong is 899 yuan, Tmall's A-DATA's official flagship store is 859 yuan, 128G is 599 yuan, 512G will be 1899 yuan. Relatively speaking, the price/performance ratio of 256G is relatively high. Go to the weekend to see "King Kong: Ye Island", by the way to the store to look at, actually there is goods, 830 won.

★ Unpacking and Chip Introduction★

According to international practice, first come out of the box. The color of the SX8000's box is deeper than Avant's classic purple color, and it turns brown, which looks like a lot of high-grade. The upper right corner of the box indicates that 3D NAND particles are used to support the NVMe 1.2 standard, and the lower left corner indicates that this is an M.2 SSD product based on the PCIe Gen3×4 (PCIE 3.0 X4) and 2280 specifications. The back of the box indicates that the theoretical maximum continuous reading speed of this product can reach 2400MB/s, the maximum theoretical writing speed can reach 1000MB/s, and the warranty period is five years. The side of the box indicates that this product supports LDPC, with physical buffer particles, and uses SLC Caching technology.

The SX8000 uses a black PCB with a label sticker on the front. The front of the PCB is a master chip + two NAND particles + one cache particle, and there are two NAND particles + one cache particle on the back of the PCB.

The main control chip is the SM2260 of Huirong SMI. This main control is based on the ARM Cortex dual-core architecture, supports eight-channel flash memory and four CEs, and supports the PCIE 3.0 x4 interface standard and NVMe 1.2 specification. For flash memory, the SM2260 can support a variety of MLC, TLC particles (including 3D-NAND particles) in the 1x/1y/1z nanotechnology, supporting ONFI 3.0, Toggle 2.0, and asynchronous mode flash. Support NANDXtend ECC technology, support LDPC ECC (low density parity check code) error correction algorithm.

In terms of flash particles, the four NAND particles of the SX8000 have been polished on A-DATA's own LOGO and number. According to the information of the roadside agency, these particles are in fact Micron's 3D-NAND MLC particles, with a single capacity of 64GB, and a total of four 256GB total capacity on both sides of the PCB.

The cache is composed of two South Asian buffers, numbered NT5CC64M16GP-DI, which is a DDR3L-1600 particle with CL=11 and a single capacity of 128 MB. The two components constitute a total of 256 MB of physical buffer capacity.

★ Performance Test ★

As mentioned earlier, Intel 600P is also using SM2260 master, but with the intel's own 16nm 3D-NAND TLC particles. Now, what is the actual performance of the SM2260 master with 3D-NAND MLC particles? How much stronger than the intel 600P.

First, the theoretical performance test

The first is still testing four SSD general test software such as AS SSD Benchmark, Crystal Disk Mark, Anvil's Storage Utilities, TxBENCH.

Comparison of test results summary:

A-DATA SX8000 256G's maximum continuous read and write speed reached 2098MB/s and 1141MB/s respectively, single queue random 4K read/write speed reached 42.43MB/s and 259.9MB/s respectively, and 4K-64Thrd read/write speed reached respectively At 356.27MB/s and 659.35MB/s, the performance is significantly higher than that of the high-end SATA MLC SSDs, and higher than those of PCIE master MLC SSDs that do not support NVMe. However, the ASD SSD score of A-DATA SX8000 256G is still lower than the inte 750 and Samsung 950 PRO which are also using the native PCIE NVMe master. Fortunately, everyone now knows that one of the characteristics of Hui Rong’s main control is that it is not suitable to run AS SSD Benchmark tests. The low score of AS SSD Benchmark cannot explain the weak performance of an SSD. The conventional test software cannot fully reflect Out of a SSD's real comprehensive performance. Careful analysis of each test data, you can see ADATA SX8000 256G random 4K write performance is strong, and random 4K read performance is relatively general, deep queues under the random 4K write performance is also strong, but the deep queue Random 4K read performance is weak compared to other high-end PCIE NVMe SSDs. So A-DATA SX8000 256G is more suitable for home use.

Second, simulate the actual use of environmental performance testing

PCMARK8 is the closest to the actual use of the environment simulation test software, including the storage device testing part of the game, office, graphics processing and other sub-projects, test data volume reached about 50GB. PCMARK8's Storage test results are more reference than the previous four regular test items, and can accurately reflect the performance of the SSD, and more precisely the overall performance of the SSD in the general home, games, and small SOHO use environment.

Comparison of test results summary:

A-DATA SX8000 256G's final Storage score was 5057, and there was no suspense that surpassed the Intel 600P, which also uses the SM2260 main control but with 3D-NAND TLC particles. Comparing with other high-end SSD products of PCIE NVMe master + MLC NAND, the Agilent SX8000 256G test score exceeds that of the INTEL 750 400G and GALAXY HOF PCIE 1T, but falls behind Samsung 950 PRO 256G and Plextor M8PE 256G. Of course, the price of the SX8000 is also lower than the latter two SSDs. Carefully analyze the test data, A-DATA SX8000 256G lags behind other PCIE NVMe SSDs in the loading speed test of "Battlefield 3", and in the light and heavy load test of PHOTOSHOP, they actually go-ahead with INTEL 750 400G and Samsung 950 PRO 256G. . From another test result that uses the intel 600P of the SM2260 master, it is also a good result of the PHOTOSHOP light and heavy load test. It is estimated that this is the characteristic of the Huirong SMI SM2260 master. From a performance point of view, A-DATA SX8000 256G is among the medium level in many PCIE NVMe SSDs. And I also found a problem in the test, after a few hours of continuous testing, SM2260 master chip is only slightly warm, in the heat and temperature control than the group connected PS5007 master much better.

Chief Living View:

First, AIG SX8000 256G advantages and disadvantages:

1. Advantages: Strong performance, significantly surpassing traditional high-end SATA MLC SSDs, with medium performance in PCIE NVMe SSD, NVMe 1.2 support, low heat generation, and five-year warranty.

2. Disadvantages: New products are listed and strange goods can live. The current price is vaunted, and the price of a large number of products after distribution is estimated to have a small downward adjustment space.

Second, buy advice

Currently, the mainstream high-end SSD products adopting the PCIE NVMe master control on the market mainly include the intel 750 series with the Intel CH29AE41AB0 master controller, the Samsung 960 PRO/EVO series with the Samsung Polaris master controller, and the Samsung 950 with the Samsung UBX master controller. The PRO series uses the Plextor M8PE series controlled by the Marvell 88SS1093, and uses the Litelink T10, Apacer Z280, GALAXY HOF, and the warfare series controlled by the group-linked PS5007, and now augments the A-DATA SX8000 mastered with the Huirong SMI SM2260. The more products and competition in the series, the more users can get more affordable prices. Throughout these products, Samsung 960 PRO and Plextor M8PE have the strongest performance and the highest prices; the products controlled by Grouplink PS5007 are the most popular, but depending on the NAND granules, there are also different firmware versions. The performance of the products is not uniform. Qi, the price gap is also quite large. The products that use the SM2260 master control in performance are basically in the same class with the SSDs of the group-linked PS5007 solution. There is no significant difference in stability and compatibility, but the heat output is smaller. A-DATA SX8000 and Intel 600P contrast, performance increase more than a grade, with the price of 256G capacity difference of 200 yuan or so, from the performance increase there are MLC particles and TLC particles compared, I personally think that spend more than 200 yuan is It is worthwhile, but it must be chosen in conjunction with the individual's budget and specific needs. In terms of cost performance, currently the cost-effectiveness of the PCIE NVMe SSD is significantly higher than that of high-end SATA MLC SSDs. For example, the Samsung 850PRO/EVO, Toshiba Q300PRO, and the SanDisk Extreme PRO series of SSDs have no cost-effectiveness at all. Therefore, my suggestion is to directly consider the high-end PCIE NVMe MPU + MLC particle SSD products in terms of performance in the case of motherboard support, or simply start with the low-end SATA master + TLC particle SSD products. In any case, the experience will not be much worse than the more expensive SATA MLC products. At present, the price of A-DATA SX8000 is still slightly high, I think there is room for downward adjustment, and users who are going to start can wait and see.

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