Recently, following Samsung's 860 qvo SSD, Samsung has launched a larger capacity SSD equipped with 9x layer second-generation QLC NAND flash memory particles.
Compared with the previous generation of products, the continuous performance has been improved by 21%, and the durability of intelligent turbowrite has been improved to 3.8 times of the original, and the performance has been cracked. What is the actual performance of this product? Let's take a look at it.
QLC flash memory particles show the advantages of large capacity
As we all know, from the first generation of Samsung, we can see that the first generation of QLC is compared with that of Samsung QLC.
For example, the P / E service life of QLC is low and the speed is the slowest. Even the application of QLC is a technical retrogression. Therefore, some users hold a wait-and-see attitude. But in fact, the technology of QLC is very mature.
The first is the cost. At present, both MLC and TLC particles, the price of a larger hard disk is still very expensive, but the user's demand can no longer meet 512 GB、1TB such capacity, so many products still use solid state mechanical storage solutions.
The biggest advantage of QLC NAND is that it has lower cost and can produce larger capacity products at the same cost,Therefore, the 870 qvo of QLC particles can achieve a larger 4tb, 8tb, or even exceed the maximum capacity of a 2.5-inch hard disk.
And the second is that many netizens worry about life expectancy, that is, P/E life expectancy.
Generally speaking, it refers to the number of data read, write or erase. The formula of P / E lifetime is the number of erasure * capacity / daily erasure / 365. Assuming that a 1TB QLC solid-state hard disk with 100 GB of erasure per day means that its life = 1024 * 100 / 100 / 365, about 2.8 years.
However, the maximum number of writes is also theoretical. If the maximum number of writes is exceeded, it may not be 100% broken. For individual users, it is very rare to be able to write more than 100GB of data every day.
While Samsung 870 qvo 1TB version can reach 360tb TBW (total bytes written), 2TB version is 720tb TBW, 4tb version is 1440tb TBW, 8tb version is 2880tb TBW.
For normal use, this is a large enough amount of TBW. For most individuals, I'm afraid our PCs have long been eliminated, but the hard disk can still be used.
So, you need super large capacity, ultra-low cost, super long service life, Samsung 870 qvo has achieved.
Appearance of Samsung 870 qvo SSD
The appearance of Samsung 870 qvo is the same as that of the previous generation. The 2.5-inch SATA 3 interface is made of all metal, and the surface is dark gray frosted. It is very light and has texture.
In terms of capacity, 1TB is available, 2TB and 4tb are available, and the maximum capacity is 8tb. 8tb is also the first 8tb consumer grade SATA SSD.
In terms of QLC particles, Samsung has always been a leader in technological breakthroughs.
The product we got is the 2TB version, which has a longer service life. To some extent, it is enough to replace TLC particles and become a new generation of consumer grade storage particles with higher cost performance.
Sata3 interface, now some hosts have reserved the hot plug extension, which is very convenient for data storage and mobile office.
The internal layout of the new generation is basically the same. The new 870qvo SSD is also a small PCB board, and the versions based on different capacities will be slightly different. After all, the maximum capacity of this time is 8tb.
Samsung 870qvo is based on high-density qlcv-nand flash memory, one front and one back to form 2TB.
In addition to the performance improvement, in terms of service life, according to Samsung's official data, the 1TB version is 360tb TBW (the total number of bytes written), the 2TB version is 720tb TBW, the 4tb version is 1440tb TBW, and the 8tb version is 2880tb TBW.
Converted to daily applications, most users may not be able to achieve such a level of TBW. Moreover, Samsung has a three-year warranty, so there is no need to worry about after-sales service.
The middle chip is the latest MKX controller based on ARM architecture.
On the far right is the 2GB lpddr4 cache, Thanks to smart TurboWrite technology, the hard disk also supports six GB of analog SLC cache and a maximum of 72 GB of intelligent cache to ensure daily high load large file writing speed.
Samsung's official data, version 2 TB 870 QVO SSD read up to 560 MB/s, write up to 530 MB/s, this is almost the highest performance that the interface can achieve.
Next, let's take a look at the measured performance.
And the hardware of the platform we tested was Intel's nine-generation Core i9-9900k processor ,8 core 16 threads.
The video card is NVIDIA RTX 2080 independent graphics card with 2 x 16GB ddr4-2666mhz dual channel memory.
System hard disk is Samsung PCIe 1TB solid state hard disk, Microsoft Windows 10 home Chinese version are upgraded to the latest version, office environment temperature about 28
This Samsung 870 qvossd system format is NTFS, the capacity is 2TB, and the available space is 1.81tb.
Benchmark performance test
First of all, we use crystal diskinfo software to check the basic status of the hard disk. Firmware svq01b6q, transmission mode sata600, support S.M.A.R.T, NCQ, trim, devsleep functions, which is worthy of affirmation for a high cost-effective positioning SSD.
Samsung magician solid state disk management software is Samsung's official hard disk monitoring tool, which can let users know the firmware version, driver and other information at any time and keep the latest status, and provide personalized experience for different Samsung hard disks.
Using Samsung magician SSD management software for testing, we can see that the sequential reading speed of this Samsung 870 qvo SSD 2TB version is 558mb / s and 518mb / S; random read IOPs and random write 68K IOPs.
In the test of crystal disk mark version 7.0.0, the sequential read speed is 559.69mb/s, and the write speed is 5119.91mb/s, which is basically consistent with the detection results of Sansung magician.
In our daily work, such as running programs, games and other operations, we are more random read, 4K q32 random read speed of 94K IOPs, write to 80K IOPs.
This number of reads and writes is enough to cope with the daily high load data transmission.
As SSD benchmark test is also a reference. The sequential read speed is 526.46mb/s, and the write speed is 489.66mb/s. 4k-64 randomly reads 92k IOPs and writes 77K IOPs.
In the Atto disk benchmark test, the maximum read speed of 870 qvo is 532.10mb/s and the maximum write speed is 493.36mb/s, which is also excellent.
In the benchmark test of txbench, the sequential reading speed of 870qvo is 558.89mb/s and the sequential writing speed is 517.24mb/s;
The read-write speed of 4K QD32 is 383.74mb/s and 301.17mb/s. It is consistent with the test results of crystal disk mark and Samsung magician software.
Through the tests of the above professional tools, we can see that this Samsung 870 qvo SSD is not only very powerful in terms of read-write speed, but also very stable.
This has a better fast experience for daily application programs, large file reading and writing, etc.
Can this performance be achieved in practice? Next, we will verify it by reading the measured files.
First of all, we chose a high-definition movie of about 10GB. The speed of reading a single file reached 2.73gb/s, and we did it in one go without delay.
After that, select a single game about 50GB, multi file, long-term continuous reading and writing can reflect the real performance. The reading speed of 496mb / s seems to be more normal, still smooth and stable.
At the beginning, the speed of writing also reached GB. No wonder 10GB files can be completed in an instant, and then stabilized at about 495mb / s without pressure.
Solid state drives with larger capacity are more and more popular with users. Samsung 870 qvo SSD not only improves the capacity year by year, but also approaches the limit in performance. With the support of intelligent turbowrite technology, the durability of solid-state drives is more lasting.
So when we choose SSD now, we may not have to worry about SLC, MLC, TLC or QLC flash memory. Samsung SSD is narrowing the gap.
However, the positioning of 870 qvo SSD is biased towards entry-level users to mid-range users. While highlighting the cost performance, it is also one of the best choices for disk storage in data warehouse.