PCIe 4.0 SSDs are not only getting faster and faster, but also in terms of capacity. At present, the mainstream capacity has changed from 512GB to 1TB. However, for the game party, the material party, the editing party, and the AI alchemy party, 1TB is obviously easy to "see red". In the case of a limited number of M.2 ports on the motherboard, a single SSD with a large enough capacity is the king.
The current consumer-grade PCIe4.0 SSD can have a maximum capacity of 8TB, which is ridiculously expensive. 4TB is undoubtedly a specification that balances both capacity and price. Today we got started with the experience of Langke NV7000-t 4TB PCIe 4.0 SSD, its price is 1649 yuan, the read speed can reach up to 7300MB/s, and the write speed can reach up to 6700MB/s.
Unboxing:
The outer packaging of the product uses the packaging of a hard box and the font processed by the hot silver process, which looks calm and atmospheric.
On the back of the outer packaging of the product, the words 5-year warranty + 4TB are particularly conspicuous.
An ultra-thin metal heatsink is provided as a gift to assist in heat dissipation. It is up to the user to decide whether to install it or not.
Even with a capacity of 4TB, only 4 flash memories are needed to achieve it. The NV7000-t adopts a single-core layout, making the volume as thin as possible, ensuring excellent compatibility in thin and light notebooks, PS5 consoles and other devices.
The NV7000-t has a label on the back with basic information about the product.
On the front, you can see that a master control chip and four flash memory chips are arranged on the black PCB board. The NV7000-t adopts a no-buffer solution, and is equipped with HMB technology and SLC Cache technology to improve the I/O read and write performance of the hard disk.
The NV7000-t is based on MAP1602A the 12nm process and supports PCIe 4.0x4 and NVMe 2.0 standards. It is currently a relatively mature PCIe4.0 main control solution, and it can be seen on many high-end PCIe4.0 SSDs.
Four NAND flash memory particles, which are packaged by Lanco in-house. According to the Flash ID, it comes from YMTC's X3-9070 fourth-generation 3D TLC particle, the world's first 232-layer 3D NAND, with 50% higher performance and 25% lower power consumption than the previous generation.
The standard 2280 form factor easily mounts to the motherboard's PCIe 4.0x4 M.2 slot.
Performance Testing:
The firmware version is H230523a, supports the latest NVMe 2.0 protocol, takes the PCIe 4.0x4 lane, and supports S.M.A.R.T, TRIM, Volatile Write Cache functions.
In the case of no partitioning, we can see that the NV7000-t 4TB has 3.63TB of free space, which translates to about 3726GB of free space. The large capacity of a single SSD is already comparable to the large-capacity mechanical hard disks of the year. Based on the occupation of 100GB of a 3A game masterpiece, NV7000-t can hold as many as 37 parts. No matter how many games you have a Steam account, you will have a place to settle down.
According to CrystalDiskMark, the NV7000-t 4TB has a read speed of 7115MB/s and a write speed of 6477MB/s, which is very similar to the official data. In addition, 4K random read and write speeds reach 89 and 358 MB/s. Among the many PCIe 4.0 SSDs, this performance also belongs to the T0 echelon.
AS SSD Benchmark这款软件实测，NV7000-t 4TB总评分达到9557分，表现不错。
TxBENCH测试，NV7000-t 4TB的写入速度比CDM更快些，达到6623MB/s。 4K读取速度为82 MB/s，写入速度为336 MB/s。
PCMak 8测试中，NV7000-t 4TB存储项得分5070分，带宽速度达到726MB/s。
In the file transfer test, it only takes about 16.7 seconds to write a large file of about 36.3GB, and the average transfer speed is about 2.6GB/s.
File reads are also very efficient, with completion times and average read speeds similar to those when files are written.
We used an HDD to transfer this 36.3G file, the transfer speed was only about 100MB/s, and it took 7 minutes. Compared with 16 seconds, it can be seen that the NV7000-t 4TB has an unparalleled speed advantage.
Cyberpunk 2077 occupies more than 100G of hard disk capacity, and every time the scene is loaded, if the hard disk speed is not strong, it will take a lot of time. I used the NV7000-t 4TB M.2 SSD to load it, and it took a little more than 5 seconds, which basically gave me the feeling that there was no reading time, and the experience was really great.
SLC Cache Cache Size Test:
Using TxBENCH software, perform a continuous write test on the entire disk without partitioning until the free space of the entire disk is filled.
It can be seen that at the beginning, the write speed is at a high level, with an average of about 5800MB/s, which is the write speed within the SLC Cache capacity, and its SLC Cache capacity is about 740GB; the middle section is the original write speed of TLC, with an average speed of about 2500MB/s; and finally the blank flash memory is used up, and the average write speed is still about 1000MB/s while erasing and writing. In terms of this performance, many PCIe 4.0 SSDs in the same price range do not reach this level.
IOMeter IOPS随机写入测试：
The NV7000-t 4TB SSD is written to 4K QD32 random for about 15 minutes using IOMeter, recording one data per second.
The NV7000-t 4TB uses the DRAMLess unslowed solution, which is common for unslowed SSDs due to frequent performance fluctuations under high loads. In fact, you don't have to worry, the environment we use daily is far less than this load, and it is still very silky to use.
Summary:
In terms of performance, the NV7000-t 4TB is not inferior to other brands' high-end products, and the read and write performance has reached the upper limit of the PCIe4.0 interface. The large SLC cache capacity allows you to enjoy ultra-high-speed read and write experiences without interruption. Its 4TB massive storage capacity stacks the Buff to solve the anxiety of capacity in one step, and you can save as much as you want. For users who want both high performance, large capacity, and a certain cost performance, the Langke NV7000-t 4TB is undoubtedly worth buying.