Digital Chinese New Year Challenge
Recently, some netizens are ready to buy an SSD and ask me how about the new BIWIN NV7400 on JD.com? I don't think I've heard of this brand before.
It is estimated that there are many friends who do not know about the brand of BIWIN, in fact, the SSD, memory and other products of brands such as Acer ACER, Acer Predator, HP HP and other brands that are common in the station are all produced and operated independently by BIWIN, and the reputation is very good.
Previously, BIWIN was not well-known among ordinary consumers, but in fact, this company can be called a behind-the-scenes boss in the domestic storage field, and is one of the few listed domestic storage manufacturers, with strong R&D and production technology, and a deep relationship with upstream wafer suppliers, and its business in the storage industry involves various processes of particle packaging and detection of finished product production.
In addition, BIWIN also has its own IC packaging factory, and its own packaged particles are used for its own products, which is much more reassuring in terms of quality.
Recently, BIWIN should be ready to build its own brand, so it went from behind the scenes to the front of the stage and released NV7400 PCIe 40 ssd。Looking at the product positioning, NV7400 is a WOOKONG series of BIWIN's e-sports product line, and it is estimated that the manufacturer also hopes that NV7400 can have the same indomitable fighting spirit and peak combat power as Brother Monkey.
The Acer Predator GM7, which I have bought from BIWIN foundry before, as a sister version of TiPlus7100, feels pretty good when tested. With curiosity, this time I want to try what the NV7400 launched by BIWIN himself is.
So I started with a cheaper 1TB version, and carried out a detailed test of the professional direction, the full text of the test report is about 6000 words, I hope to give you some reference when buying.
The front of the box is prominently marked with BIWIN's logo, as well as the model and specific capacity information of the SSD. In terms of color scheme, it is a strong black and red Chinese style, which is quite beautiful.
BIWIN NV7400 PCIe40 The body of the SSD is taken out, and you can see that the front of the SSD is covered with a layer of graphene heat dissipation sticker, and at the same time, it is printed with the familiar monkey shape, and the red color scheme is quite eye-catching.
Looking at it from the side, BIWIN NV7400 PCIe4The graphene heat dissipation sticker used for 0 SSD is still quite thick, and with BIWIN's intelligent temperature control algorithm, the actual heat dissipation effect really surprised me. When the temperature is tested, it is read at full speed without a heat sink for more than 20 minutes without air duct, and the particles are only 45, and the main control temperature does not even exceed 40!
The sticker on the back is printed with the basic information of this SSD, which can be scanned at a glance.
According to the product page, the sequential read and write speed of the BIWIN NV7400 1TB in my hand is 7400MB S, the sequential write speed is 6500MB S, and the 4K random read and write speed has reached 1000K IOPS and 900K IOPS respectively, which is a full-speed PCIe4 from the perspective of parameters alone0 SSD undoubtedly.
In terms of warranty, BIWIN NV7400 gives a 5-year 1000TBW warranty policy, which is quite sufficient. After all, it is difficult for the average home user to write 10TB a year. In addition, this SSD also has a 4TB ultra-large capacity version, and friends who need large capacity can directly get it.
The official website does not identify the main control and particle scheme of the NV7400 SSD, so we can only remove the heat dissipation sticker and take a look at it for ourselves with a macro lens (don't learn from me, you may lose the warranty if you remove it). It can be seen that BIWIN NV7400 1TB uses a single-sided dual-grain layout, without independent DRAM external slowdown, and is a classic DRAM-less domestic SSD.
BIWIN NV7400 is equipped with the well-known Lianyu MAP1602A-F3C, which is the world's first SSD main control chip that can support 2400MT S interface speed without overclocking, and only needs 4 channels to run PCIe4The upper limit of 7400MB s bandwidth of 0 x4 has reached the world's top level. And due to the use of 12nm process and DRAM-less solution, this master controller has lower power consumption and less heat generation, which is a very excellent HMB master controller.
In terms of particles, it can be judged from the part number starting with BW that BIWIN encapsulates the particles by itself, and the specific part number is BWN0ATF1B1HCAD. Personally, I blindly guessed that this was the TLC wafer of YMTC, but I didn't find any information about it on the Internet. Not only do you not have to worry, BIWIN is one of the few storage factories in China with the ability to encapsulate particles by itself, and the particles used for your own sons and daughters will always be more reliable, so you can rest assured.
Fortunately, we can take a specific look through the flash ID, and it is determined to be YMTC X3-9070 232L TLC particles, which can put the heart in the stomach now. After all, Huawei, a major customer, is estimated to be able to take away more than half of the production capacity of YMTC, and the remaining production capacity will be distributed to enterprise-level SSD manufacturers and the like.
In CrystalDiskInfo, you can see that BIWIN NV7400 is 10242GB capacity, support NVMe 14 protocol standards, the standby temperature is only 41, which is still relatively cool.
Due to the conversion relationship between binary and decimal, its actual usable capacity in Windows is 95385gb。This is a normal phenomenon, almost all consumer-grade SSDs are like this, after all, there is always a part of the capacity set aside as a spare block and OP (over-provisioning) to use, and the proportion of about 7% is very conservative compared to enterprise-level SSDs.
Using SmartMoonTools to take a look, BIWIN NV7400 gives 5 power consumption levels by default, which are 65w、5.8w、3.6w and 005w、0.002w。
The appearance and product parameters are almost understood, and then we will officially understand BIWIN NV7400 PCIe40 SSD has carried out a series of tests, and the test platform configuration used here is as follows:
cpu：intel i5-13700k
Motherboard: ASUS ROG Strix Z790-A Gaming WiFi Blowing Snow DDR5
Memory: Lexar ARES DDR5-6400 16GB x2
SSD: Intel Optane 900P 480G, Guangwei 4T
Graphics: ASUS RTX3090 Raptor.
System: Windows 11 Professional Edition
In addition to the CPU frequency and single-core performance, the PCIe payload size (MPS) of the PCIe payload (MPS) of the entire platform will also have an impact on the test results.
Currently, only AMD platforms can support 512-byte MPS, which can theoretically provide 75GB s data transfer rate; The Intel platform only supports 256 bytes of MPS, and the actual read speed is generally limited to 7Within 15 GB s.
As one of the most commonly used hard disk test software, CrystalDiskMark can intuitively display the read and write performance of SSD in SLC, and the nominal parameters of most SSD manufacturers are also tested by this software.
In the empty disk state, the sequential read speed of BIWIN NV7400 is 7108MB S, and the sequential write speed is 6607MB S, which is basically the same as the official nominal performance parameters, and the write speed is surpassed, which is the current full-speed PCIe40 SSD's normal level. If you change to an AMD test platform, the sequential read speed should be more than 7400MB S, which is also the origin of the name of this SSD.
The Q1T1 4K random read speed reached 952MB s, although the measured performance is in SLC cache, but in any case, this is also consumer-grade PCIe40 SSD is a very good level.
At the same time, we can see that the 4K random read performance under the Q32T16 deep queue has reached 1073K IOPS, and the write performance has also reached 1050kiops, which exceeds the official performance reference.
In fact, the most commonly used copy, pasting and other operations in the Windows system can be regarded as sequential reads and writes under a single queue, and BIWIN NV7400, like most consumer-grade SSDs, has been specially optimized for low queue reads and writes, and it can be seen that under Q1T1, when the granularity is 1MB, the sequential read/write speeds reach 4932MB s and 5403MB s respectively. It has exceeded the upper limit of the read and write tasks of Windows ordering, which can fully meet the daily read and write needs.
During the test, ATTO will perform the read and write test of packets of 512B, 1Kb, 2Kb until 64MB in the case of OIO queue depth of 4, and the speed results after the test are expressed in the form of histograms, which can well identify the read and write stability of SSD for different granularity data in low queues.
It can be seen that with the increase of the data block, BIWIN NV7400 PCIe4The read and write speed of 0 SSD maintains a highly consistent stability, which is also the ideal state for consumer-grade SSDs.
It is difficult to describe the experience of using an SSD in words, some people use it as a system disk, and some friends use it as a data disk, and the subjective feeling about fluency is really not as clear as quantitative data.
Therefore, here we choose to use the full system disk benchmark in PCMARK10 to observe the performance of the SSD by playing back the operation script.
The entire benchmark process includes 23 test scenarios, including Windows 10 boot, application game launch, copying multiple large texts and many small files, hard disk tracks when Office and Adobe applications are running, etc., each scenario will be run three times, and the performance of the latest storage devices can be fully and reflected by tracking the actual hard disk tracks from popular applications and common tasks. This test basically represents the maximum usage intensity of ordinary users when using the SSD as a system disk.
In the empty disk state, BIWIN NV7400 performed quite well, with a test score of 3784 points and an average bandwidth of 60097MB s, the average access time is 44 s, which is the current first-line PCIe40 excellent level.
If PCMark 10's full system disk test measures the performance of the SSD from the perspective of the system disk, then 3DMark tests the SSD from the perspective of the gaming disk.
3DMark's Storage Benchmark is a dedicated component test that measures the impact of storage devices on the gaming experience, and it supports all the latest storage technologies, making it a great reference for gamers like us.
In the empty disk state, BIWIN NV7400 has a score of 3871 points and an average bandwidth of 6575MB s, the average access time is 46 s, and it is still PCIe40 SSD is very good, and the specific test results for each game are shown in the chart above.
3DMark only gives the performance score of the SSD when it is used as a gaming disk, so what kind of speed does it perform when loading the game? Here you can take out pcmark8 as a reference.
PCMark8's storage test uses scripts to simulate the loading process of both World of Warcraft and Battlefield 3, and records the time taken so we can compare them between different SSDs.
The total time taken to load the test of World of Warcraft and Battlefield 3 of BIWIN NV7400 is 188s, which is not far from expensive flagship slow SSDs such as Samsung 990Pro, Western Digital SN850X, and SolidigM P44 Pro, with a difference of less than 1 second.
After all, the newer large-scale games are generally optimized for loading, reducing the pressure on the random read performance of the SSD, which is more similar to the process of sequential reading, and in this process, along with the operation of CPU decompression, its speed performance is not only affected by the SSD, but also by the performance of CPU, memory and other accessories.
And this test result also confirms the argument I have always insisted on: the performance requirements of the SSD for loading games are not high, and for gamers, you can choose a cheap and large bowl when choosing a game disk, anyway, the difference in the time it takes to load the game is difficult for ordinary people to distinguish with the naked eye.
Look at the tests of tools such as CrystalDiskmark, now PCIe4The maximum read and write speed of 0 SSD is often more than 7GB s, PCIe50 SSD can reach more than 12GB S that is nearly doubled, but in fact, most ordinary users still use the Windows system, let's connect PCIe4The extreme sequential read and write speeds of 0 SSDs are difficult to fully utilize.
This is because the file resource management mechanism of Windows is very stretched, and when using our most commonly used copy-paste operation, the actual read and write speed of the order process in Win10 is usually about 3GB s; Even if you upgrade to Win11, the write speed of a single process basically cannot exceed 4GBS.
Here, I used IOMe to generate a 100GB incompressible pseudo-random data test file, which was written to BIWIN NV7400 from the 4T optical power game on the computer. Since 100GB is still within the SLC cache capacity of the SSD, the entire write curve is very stable, and the speed is maintained at 3Around 5GB s:
When reading this file from BIWIN NV7400, the speed can be maintained at 35-3.Between 6GB s, it is also very fast.
As we all know, when the NAND chip used by SSD stores data, the main control chip can detect and adjust the voltage of the memory cell in the flash memory by controlling the number of electrons in these memory cells, so as to identify the state of 0 and 1, so as to read and write the data we need.
Since TLC has 8 voltage states in 1 memory unit to store 3 bits of data; However, SLC only needs 2 voltage states to store 1 bit of data, and the potential accuracy required when reading and writing data is more relaxed, so the write speed of SLC is much faster than TLC.
In order to improve the user experience, almost all consumer-grade TLC SSDs use the SLC Cache (simulated SLC cache) mechanism, which uses a part of the capacity to simulate the SLC state, which can greatly improve the performance of the SSD during burst write operations.
This makes for full speed PCIe4The 0 SSD can reach an ultra-high write speed of more than 7000MB s in a short period of time, but when the SLC cache is exhausted, the speed will slow down for garbage** operations from SLC to TLC, affecting the write speed in the second half of the process.
The maturing SLC cache mechanism also provides a more streamlined FTL mapping structure for current consumer SSDs, bringing lower latency and higher mixing performance in the moderation. At the same time, it also alleviates the performance and life loss caused by frequent erasing and writing in the high occupancy state of the SSD.
So don't believe what some two knife KOLs fool"There is a slow disk because there is a cache, so the full disk will not be slowed down".Rumors like that, the current dram-less without reprieve is not bad in this regard.
At the same time, the current DRAM-LESS can call up to 40MB of host memory in Windows through HMB technology to assist in storing FTL mapping tables, which is no different from having a slow disk for ordinary household users.
In order to deeply explore the SLC cache solution of BIWIN NV7400, here we test the full disk sequential write (128KB, Q32T1) in RAW format and show it in the form of a curve graph.
The red curve in the figure represents the read speed, and it can be seen that the full sequential reading curve of the BIWIN NV7400 fluctuates slightly during the test, but the overall is relatively stable, basically remaining at about 5000MB s.
The blue curve in the figure represents the write speed, and you can see that in the first section of the curve, the write speed is accelerated to about 5500 MB s and the SLC cache capacity is about 120 GB
The second segment of the three-segment curve indicates the true direct write speed of TLC particles, BIWIN NV7400 reaches 1500MB S, which is also the typical speed performance of YMTC X3-9070 particles
Finally, the third speed is that the master will GC garbage on the space occupied by the SLC cache**, and at the same time write new data, and the speed will drop to about 700MB s under high load pressure.
It can be seen that BIWIN's NV7400's main control GC (Garbage Collection) garbage ** strategy is relatively positive, and the evidence is that there is a short-term speed recovery in the last paragraph of writing. Personally, I think that the master controller frees up some clean pages in the process of GC the SLC cache, so that when the written data falls into the clean page, it faces fewer r-e-w rewrite penalties, so the speed will be faster, and the peak directly reaches the level of TLC direct write.
According to experience, most of the domestic SSDs that use Lianyu MAP1602 main control + YMTC particles use the dynamic SLC cache solution. In order to ** how much capacity is given by SLC cache under different capacities, so here we use the parameters of 128K Q32T4 to pre-fill the hard disk by 20% 40% 60% 80%, let it stand for 20min to let the main controller perform garbage ** operation, and then write and fill the remaining space sequentially to test its sequential writing inside and outside the slow work.
(1) Pre-filled 20%.
(2) Pre-filled 40%.
(3) Pre-filled 60%.
(4) Pre-filled 80%.
As we mentioned earlier, the SLC cache size of BIWIN NV7400 is 120GB in the empty disk state, and when the pre-filled is 20%, 40%, 60%, and 80%, the SLC cache size is 113GB, 98GB, 71GB, and 63GB respectively, indicating that BIWIN NV7400 1TB SSD adopts an intelligent dynamic SLC cache mechanism
As the remaining space decreases, the SLC cache capacity can be flexibly adjusted, and there is no slowdown when it is close to full, ensuring a good experience throughout the capacity life cycle.
As mentioned earlier, the small-grained random access performance of SSDs is the key to the smoothness of our daily use. Although the real operation process of SSD is a complex process with various granularities and various read/write ratios, we can get a glimpse of the leopard from the performance of 4K small-grained random read/write.
Here, in order to ensure that the SSD can enter the dirty disk steady state before the read and write test, first write to the disk fill twice in 128KB Q32T4 sequence, and then perform the Q1T1 4K random read and write tests with a duration of 10000s respectively, and record the performance of the whole process through charts.
In the test of 4K random write in 10,000 seconds, BIWIN NV7400 has some performance fluctuations in the process of the inherent read-earse-write writing mechanism of NAND flash memory because it does not have independent DRAM.
This is also a normal situation, many consumer-grade non-slow SSDs are this performance, and the flagship slowed SSD is only slightly better, which has little impact on the actual use experience.
To solve this problem, we can only consider giving up the use of consumer-grade products and turning around and adding money to buy an enterprise-level SSD with huge OP space.
In the test of 10,000 seconds of 4K random read, the performance of BIWIN NV7400 is relatively stable, although the curve fluctuates slightly, but the overall speed is still maintained at about 36MB S, which is already more than the performance of the domestic SSD benchmark Zhizhi Tiplus7100 (previously tested, the latter's slow real 4K random read speed is about 31MB S).
Here, in order to test the real temperature performance of BIWIN NV7400, it was decided to record its temperature performance for a long time under extremely high load.
Specifically, the test process was performed on an open rack platform at room temperature 16, with a sequential reading of 1500s using a 512k particle size Q32T4, and the reading speed and the status of the 3 temperature sensors were recorded using HWINFO.
During the whole test, BIWIN NV7400 maintained an ultra-high read speed of about 7100MB s throughout the whole process, and there was no slowdown due to overheating. The temperature of the two particles is up to 45, and the main control temperature is up to 39, which is really good, especially suitable for use in small heat dissipation spaces such as laptops and PS5.
In addition, in the first 5 minutes of the test, I used Hikvision's thermal imager to make a **, and the temperature was basically the same as the software display, which also proved that the temperature control sensor of BIWINNV7400 SSD should not have a false standard, and the real temperature was indeed low.
Due to the unique X-Tacking architecture, YMTC's TLC particles have the ultra-high durability of the world's top at present, and the real life should be able to reach about 3000 times of PE, BIWIN generously gave this 1TB NV7400 up to 1000TBW warranty life, which is actually quite conservative.
After the above series of tests and tosses, this SSD has been written to 23TB, and the life of the smart display is still 98% at this time, which is quite reassuring, after all, ordinary users may not be able to write so much data in a year.
After a complete round of testing, this BIWIN NV7400 PCIe4The performance of the 0 SSD is quite satisfactory.
In terms of performance, the sequential read and write speed can reach up to 7400MB s, 6500MB s, and the random read and write performance is also very good, both of which are PCIe4The excellent level of 0 SSD and the intelligent dynamic SLC cache mechanism also enable users to enjoy a smooth experience of write acceleration in various capacities.
In terms of life, the 1TB version of BIWIN NV7400 continues the ultra-long life advantage of YMTC particles, with a 5-year warranty + up to 1000TBW warranty durability, which is actually enough for ordinary users to write for decades.
The most surprising thing is actually the temperature, BIWIN NV7400 PCIe40 SSD's reading and writing heat is really low, no heat sink for more than 20 minutes of continuous reading and writing at full speed, the maximum temperature is only more than 40 degrees, it seems that the graphene heat dissipation paste and temperature control algorithm are really used force, and I personally feel that it is especially suitable for loading laptops, mini consoles and PS5 and other game consoles.
In addition, this SSD also has 2TB, 4TB and other larger capacity models to choose from, and friends who are ready to expand and upgrade the hard disk space in the near future can focus on it.