Netac is a veteran player in the flash storage market. After all, they invented the USB flash drive back then. The SSD solid state drive is actually very close to the USB flash drive. In essence, it is also the main control plus flash memory, so Netac They have also entered the SSD market for several years. NV2000 is their latest product this year. Today we will take a look at this new mainstream M.2 NVMe SSD.
Netac NV2000 SSD has three capacities of 256GB, 512GB, 1TB. This SSD uses Realtek 5765DL3D master control, which is a relatively rare solution with flash memory. The continuous read speed of each capacity is 2500MB/s, and the continuous write speed of different capacities is different. 256GB is 1000MB/s, 512GB is 1950MB/s, and 1TB is 2100MB/s. The warranty period is five years. , Warranty write capacity is 150TBW per 256GB.
Introduction of Netac NV2000SSD
Netac NV2000 has a transparent window on the front of the box, you can directly see the SSD inside the box, and the SSD specification is M.2 2280 written on the front of the box. Yes, using PCI-E 3.0 x4 channel, supporting NVMe standard.
The front of the box is printed with various environmental protection specifications that the SSD complies with. It provides a 5-year warranty and Netac’s anti-counterfeiting QR code
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5 on our hand Netac NV2000 is 1TB,Its design is very simple. Because it uses a DRAMless solution, the sticker is only attached to the main controller. There are four NAND flash memory soldering positions on the front of the PCB, but only two flash memory are installed. Note that 256GB and 512GB are used. They are different flash memories. The four flash memories on the 512GB version are fully soldered.
SSD is a single-sided design, so the back of the PCB is very smooth, and there are no mainstream electronic components
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576 The market product, this is a four-channel flash memory controller, does not support external cache, supports NVMe 1.4, supports Host Memory Buffer (HMB) and dynamic SLC Cache, which can improve performance. Its NAND interface will be as high as It runs at a speed of 1200 MT/s to keep up with the latest NAND, and will also adopt a multi-core CPU architecture with the same security and LDPC support.
flash memory is a third-party package, and it is impossible to determine which one is from the appearance. We can check it through software that it is a 3D TLC flash memory of Micron , 512Gb/CE, 512Gb/die, It only takes two to form a capacity of 1TB, which means that the capacity of a single one is 512GB, that is to say, 8 die are enclosed in one.
test platform and description
test platform uses Intel Core i9-11900K processor, the motherboard is MSI ’s MAG Z590 TORPEDPO,Install dual-channel DDR4-3600 8GB*2 memory, the tested disk will be installed on the M.2 interface directly connected to the CPU, and the system disk will be hung on the M.2 port of the PCH, so that the tested disk can be used. The best performance.
test content is the same as the previous SSD Hengping, including CrystalDiskMark, PCMark 10, PCMark 8, PCMark 7, disk test, and TxBENCH full disk write.
CrystalDiskMark
Regardless of whether it is QD1 or QD8 continuous reading and writing, Netac NV2000 has a better performance in similar products, especially the continuous reading speed of QD1 is much higher than other mainstream products. QD1's writing and QD8's reading are also the best in their class, but the continuous writing performance of QD8 is slightly lower than SN350, and it performs well in the 70/30 mixed reading and writing test.
Netac NV2000 uses the same DRAMless solution as other mainstream SSDs, so its read latency performance is similar to other mainstream products, but the write latency is high, so mixed reading and writing Delay performance is also high.
PCMark 7 disk test
The disk test of PCMark is played back with disk tracks, which can better reflect the performance of SSD in practice. Netac NV2000 scored 13746 in this test. Located in the middle reaches of similar products.
PCMark 8 disk test
PCMark 8 disk test The average transfer rate of Netac NV2000 is 609.99MB/s,It is a relatively good result among similar products.
PCMark 10 disk test
The storage test of PCMark 10 will not only give the transfer rate of each SSD, but also give the average delay. The average transfer speed of Netac NV2000 is 263.14MB/s , And the average delay is 110us, and both values are at the midstream level of mainstream SSDs.
TxBENCH full-disk write test
This test is a full-disk continuous write test performed on the tested disk without partitions, which will fill the available space of the entire disk. We can see a lot of information in the writing speed curve.
Netac NV2000 1TB is completely open NAND flash storage space, the total capacity of SSD is 953.8GB, unlike other models that have a certain OP space, in addition, this SSD uses a full-disk SLC Cache strategy, the Cache capacity has reached an astonishing 330GB, accounting for 1/3 of the total capacity, which can maintain high-speed writing for a long time. The average write speed of SSD when there is SLC Cache is 2029MB/s, of course The price of the full-disk Cache is naturally the extremely slow write speed after the SLC Cache is used up. Because the blank NAND is used up, there is no turnover space, so the master must organize the data in the SLC Cache into TLC storage while processing the data. For writing, the average writing speed at this time is only 169MB/s. Of course, it is basically impossible to use up such a large-capacity SLC Cache at one time in normal use, and it can ensure that the SSD can maintain a high-speed writing for a long time.
There is also a set of more interesting numbers that are the time consumption of each disk in each stage of writing.Since the available space of each disk is different, the time-consuming full-disk writing is just a reference for everyone. It is of little practical significance, and no one will fill the entire SSD at once.
Netac NV2000 1TB has a 330GB SLC Cache, so it can maintain a very high write speed in this range. From the table above, you can see that the writing time of 10GB, 50GB and 100GB data takes Netac NV2000 It is the shortest among similar products. SLC Cache of this capacity is basically impossible to use up during daily use, so you don't have to stare at its lower SLC Cache speed after it is used up.
IOMeter test
The following is the discrete distribution of IOPS recorded after two hours of 4K QD32 random write to the SSD using IOMeter:
p_p5 is relatively stable Netac's NV2000 1TB still has SLC Cache. The situation is basically stable at 15000 IOPS, but there are still certain fluctuations. When SLC Cache is used up, the fluctuations will be relatively large, and the strategy of cleaning Cache is also more radical, so the point of IOPS Very spread out.
Summary
Netac NV2000, as a mainstream M.2 SSD, has remarkable performance. It uses a full-disk SLC Cache strategy to make it have a large amount of high-speed writing space, and empty disks. Up to 330GB, although the cache speed is not very good after the cache is used up, it is unlikely that the cache at this level will be used up at one time, which can ensure that the SSD can maintain a high-speed write for a long time, and at the same time, because of the active SLC Cache The cleaning strategy is constantly releasing new SLC Cache space. Netac NV2000 can provide a high-speed writing speed for daily games and home use.
In terms of other performance, Netac NV2000 is basically in line with other mainstream SSDs. It can be said that this large-capacity SLC Cache is its biggest selling point. The current price of this product on Jingdong is 229 yuan for 256GB and 379 yuan for 512GB. The price of 1TB in this test is 659 yuan, and the price-performance ratio is quite good. Friends who want to start with mainstream products can consider it.
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