Samsung 2tb ssd review: Samsung T7 Shield Portable SSD Review: Tough and Consistent Portable Storage (Updated)

Samsung T7 Shield Portable SSD Review: Tough and Consistent Portable Storage (Updated)

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Samsung’s T7 Shield brings reliability for content capture

(Image: © Tom’s Hardware)

Tom’s Hardware Verdict

The 1TB Samsung T7 Shield maintains a high sequential write speed in a rugged, portable package. Samsung has priced and designed this drive correctly for its niche.


  • Limited to 10Gbps

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Update 21st May 2022: We’ve updated this article with new testing for the 1TB Samsung T7 Shield Portable SSD on page 2.

Prime Day Sale — Samsung T7 Shield 2TB Portable SSD: was $289, now $199 at Amazon
The Samsung T7 Shield 2TB features up to 1,050/1,000 of sequential read/write throughput and connects using a USB-C or USB Gen 3 connection. The 1TB is also on sale from $159 down to just $99. 

Original Review published 26th April 2022:

  • Samsung T7 Shield at Samsung for $79.99

It’s been more than a year and a half since we reviewed Samsung’s T7 portable SSD, and today we have the new Shield model in the lab. The T7 Shield takes the original formula and focuses on improving its physical endurance, addressing one of our complaints with the T7 that lacked the Ingress Protection (IP) rating that indicates it is shock, water and dust-resistant. This caveat also applied to the T7 Touch we reviewed way back in 2020.

The drive comes in three colors — black, beige, and blue — inside a shell that’s a bit thicker than its predecessors. This shell is made from an aluminum body covered with rubber, thicker due to the external ribbing that helps protect against drop damage. Additionally, Samsung has added two distinct barriers to protect the USB port, designed to keep out environmental elements like water and dust. Together, all of these factors enable the T7 Shield to meet IP65 certification requirements.

What else is different about the Shield? Well, a lot is actually similar to the T7. Samsung still uses the DRAM-less Pablo SSD controller paired with an ASMedia ASM2362 bridge chip. AES 256-bit hard encryption is, thankfully, still supported. Many other specifications, such as the three-year warranty, remain the same. The T7 Shield also comes with the same number and type of USB cables. However, Samsung has opted for a newer type of flash, and the shift towards a durable design is substantial.

Samsung also ensures compatibility with Windows 7 or higher, macOS, and Android Lollipop or higher. Compatibility for mobile devices includes the T7 Shield operating within the USB power specification, which means a maximum power draw of between 2.5W and 7.5W, depending on the port. Regardless, Samsung promises to maintain sufficient performance to meet high-resolution video recording requirements, defined as the ability to write at 900MBps consistently.

Samsung also made a concerted effort to reduce waste on this product and earned a Product Carbon Footprint label from the Carbon Trust. This essentially means that all steps involved in creating the product and its packaging were designed and verified to minimize the resultant carbon footprint. For example, Samsung uses pulp material with one-third less tray packaging. It’s hard to complain about that.

This product is otherwise not too exciting, given that it doesn’t improve much on models going back over two years. It’s probably best to focus on what it does better — the T7 Shield has increased durability and guaranteed performance. This makes it an excellent choice for photographers and videographers in the field who want something consistent and reliable. We will see if this bears out in testing.


Swipe to scroll horizontally

Product 1TB 2TB
Pricing $159. 99 $289.99
Capacity (User / Raw) 1000GB /1024GB 2000GB / 2048GB
Form Factor M.2 2280 M.2 2280
Interface / Protocol USB-C / USB Gen3 2×2 USB-C / USB Gen3 2×2
Included USB Type-C to Type-C, USB Type-C to Type-A cables USB Type-C to Type-C, USB Type-C to Type-A cables
Controller Samsung Pablo Samsung Pablo
Memory Samsung 128L TLC Samsung 128L TLC
Sequential Read 1,050MBps 1,050MBps
Sequential Write 1,000MBps 1,000MBps
Random Read N/A N/A
Random Write N/A N/A
Security 256-bit AES (Hardware/SED) 256-bit AES (Hardware/SED)
Power Bus-powered Bus-powered
Endurance IP65, Shock/Vibration Resistant, Thermal Guard IP65, Shock/Vibration Resistant, Thermal Guard
Endurance (TBW) N/A N/A
Dimensions 88 x 59 x 13mm 88 x 59 x 13mm
Weight N/A N/A
Part Number MU-PE1T0R MU-PE2T0R
Warranty 3-Year 3-Year

The Samsung T7 Shield comes in 1TB and 2TB capacities. It’s nice to see a 2TB option, and considering this drive is ideal for those who likely need capacity, the omission of smaller SKUs is not an issue. The drive is rated for up to 1,050/1,000MBps for sequential reads and writes, respectively. This is quite modest as a result of the 10Gbps bridge chip, especially considering we have 20Gbps and Thunderbolt 3 portable SSDs on the market. However, Samsung ensures 900MBps and 1000MBps sustained performance for the 1TB and 2TB SKUs, respectively, which is particularly excellent for the intended market. This is almost twice as fast as SATA-based portable options.

The T7 Shield has many features designed around security and durability, including hardware encryption. The drive is also IP65 rated and includes protection against dust, water, shock, and vibration. This includes being able to survive drops of up to three meters. Samsung additionally has a Dynamic Thermal Guard, which adjusts the drive’s performance to make sure the casing remains below 57C, which is notably lower than the 60C international standard — this reduces the risk of users getting injured when grabbing the case.

Software and Accessories

Image 1 of 2

(Image credit: Tom’s Hardware)(Image credit: Tom’s Hardware)

The T7 Shield comes with both Type-C to Type-C and Type-C to Type-A USB cables, offering flexibility for use with multiple devices. It is also compatible with Samsung’s Portable SSD Software 1.0 and Samsung Magician. The former has editions for Windows, macOS, and Android, while the latter only operates on Windows.

The Portable SSD Software offers a streamlined UI to help users receive software and firmware updates for their device.  You can also enable a security mode with a password or password and fingerprint. Samsung Magician, on the other hand, is more robust, offering the ability to monitor and benchmark the drive in addition to the features found in the Portable SSD Software.

A Closer Look

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(Image credit: Tom’s Hardware)(Image credit: Tom’s Hardware)(Image credit: Tom’s Hardware)(Image credit: Tom’s Hardware)(Image credit: Tom’s Hardware)

Our T7 Shield sample is clad in a nice blue case, clearly thicker than the older T7 models. With its considerable contours, the rubber exterior helps reduce vibration and shock, including from drops. One face has the USB-C connector and indicator light, while the other has a label with a QR code and pertinent specifications, including the model and serial numbers.

Image 1 of 2

(Image credit: Tom’s Hardware)(Image credit: Tom’s Hardware)

The T7 Shield has thermal padding and an otherwise understated, green PCB. We can see the expected controller, bridge chip, and two NAND flash packages, with notably no DRAM on board.

Image 1 of 3

(Image credit: Tom’s Hardware)(Image credit: Tom’s Hardware)(Image credit: Tom’s Hardware)

Samsung’s Pablo controller, labeled S4LR033, is a DRAM-less four-channel design. This controller is also used in the other T7 models as well as Samsung’s 980 desktop NVMe drive. The bridge chip is ASMedia’s ASM2362, capable of 10Gbps transfer speeds, and Samsung uses it on the other T7 models and many other portable SSDs. The flash as labeled is Samsung K9DVGB8J1B-DCK0, which we have seen on other drives like the Samsung 870 EVO. It’s Samsung’s 128-layer TLC.

This 128-layer flash tends to come in 512Gb, or 64GB, dies, and each of the NAND packages here is 8Tb or 1TB in capacity. This suggests a 16DP (sixteen dies per package) configuration, similar to what’s in the 870 EVO, for a total of 32 dies at 2TB. Each die is capable of up to 82MBps in its native, non-SLC mode, which is more than sufficient to hit Samsung’s stated speeds. This does require the proper SLC cache design, particularly at 1TB, which is to say it should be more conservative to ensure a high level of performance.

This flash is also seen in some newer 970 EVO Plus drives — notably slower in TLC mode at 1TB than the original model that launched with less-dense, 92-layer TLC — but, if necessary for interleaving, it also appears in a 256Gb or 32GB per die configuration. Denser dies are particularly useful at higher capacities with four-channel controllers, such as we have here.

Let’s see how the drive does in our testing. 


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Features and Specifications

Next Page 1TB Performance Results

Shane Downing is a Freelance Reviewer for Tom’s Hardware US, covering consumer storage hardware.

Quick Review: Samsung Portable SSD T7 2TB (MU-PC2T0H/WW)

While USB flash drives are still quite popular, anyone who wants decent performance and capacity will find that the majority are not particularly satisfactory, especially when it comes to write speed. Traditionally, the need for larger portable storage was fulfilled by external hard drives, but as those are both power-hungry and physically fragile, it seems many have moved away from those as well especially as larger models have gone to shingled magnetic recording (SMR) and offer tragic write speeds in certain circumstances.

In the past, I have resorted to putting 2. 5″ SATA SSDs into USB 3.0 enclosures which generally works well aside from some potential caveats with TRIM and unexpected power loss. A number of products have since followed the formula, although the hunger for even more performance now leads users to put NVMe SSDs into USB 3.1/3.2 Gen 2 (or 2×2) or even USB 4.0 enclosures for even more speed.

Many creative professionals have such needs on a regular basis and the Samsung T-series external portable SSDs have been a favourite. I’ve personally been eyeing these all the way back since the T1 was announced, but they weren’t really value-for-money in my eyes, until very recently when I stumbled on an Amazon sale that had the Samsung T7 2TB models selling at a record-low price to the point that I wouldn’t be able to buy even a basic M.2 NVMe internal SSD and enclosure for the money. I decided to take the plunge, in spite of my recent negative experiences with another Samsung SSD.


From the outside, the drive is packaged in a colour-print cardboard box with a minimalistic design featuring the drive on the front. The box is not unlike the retail box that external hard drives may come in – even with the tabs on the bottom to help the box stand upright on a flat surface.

The rear seems equally minimalistic, with the tagline of “Super fast external storage” and pointing users to their website for more information. There is a wide array of approvals and logos, of which Australia’s regulatory compliance mark (RCM) also features, which is always nice to see.

According to the sides, where the specifications are found, the claims up to 1,050MB/s read and 1,000MB/s write using USB 3.2 Gen 2 (10Gbit/s) interface, while internally using PCIe NVMe (my inference from the slightly confusing text). The drive itself is rather small – 85mm x 57mm x 8mm and weighing 58g and is supposed by a three-year limited warranty. It claims support by Windows 7, Mac OS X 10.10 and Android 5.1 or above. Weighing my drive on two sets of scales at home, I get 67.67g, which is 16.7% more than claimed. While this is a downside for those who are weight-conscious, it usually is a good thing as it means more material inside the enclosure (perhaps thermally-conductive pads). Perhaps that figure was for the smaller-capacity models in the series.

This particular unit is Made in Korea with a Model Code of MU-PC2T0H/WW. The box dates the drive as 7th June 2022, which I suspect is the manufacturing date.

Inside the outer box is an inner box, which has just the Samsung logo on the top. They make this a bit of a “premium” unboxing experience …

… with the drive resting on a tray on its own at the top. This seems to be something of an Apple-esque move, but at least the packaging so far is cardboard.

Underneath the tray is a third box containing the rest of the contents. A hole is cut into the box to show that it is not empty.

As promised, there is a booklet, a USB-C to USB-C cable, a USB-A to USB-C cable (both kept bundled with a cardboard sleeve) and the drive itself. For all the flashy packaging, it probably have been nicer if they provided a sleeve to store the drive and cables in as some of the cheaper units do.

The supplied cables have a rather “boxy” looking moulding on the plugs. The cables are otherwise unmarked, but the USB-C to USB-C cable is a bit thicker and stiffer than the USB-A to USB-C cable.

The top of the drive is nice and plain, showing off its indigo-blue finish aluminium case.

The back-side is similarly plain, with the model branding occupying the bottom right corner.

Like some Xiaomi power-banks, the information resides on a sticky label at the end of the case. As this drive is under warranty, I will not be attempting to open it.

The other side has the single USB-C port for power and data, and an activity LED.

Plugging In

When plugged into my Lenovo Legion 5 Gen 6 (17ITH6), it is detected as a USB UASP device with a VID of 04E8, PID 4001 and REV 0100.

It arrives pre-formatted in exFAT with a volume label of “T7”. The drive has 1.81TiB capacity (2,000,333,307,904 bytes total partition capacity) and has about 33.3MiB of data pre-loaded.

The pre-loaded data includes program set-up files for the software that supports use on Windows and Mac.

For Android, instead of including an APK, instead, a text file is included with a link.

The partition type is MBR with the partition beginning at 1MiB into the drive, and 1.5MiB being left vacant at the end (3055 sectors). Total block device capacity is 2,000,398,934,016 bytes which is an IDEMA capacity of 2000GB exactly.

The provided software mainly is used for enabling the security mode encryption. The use of the software appears optional.

Samsung Magician will recognise the drive, although there are very few options that are available. The SMART data can be retrieved through this software, or using third-party tools such as CrystalDiskInfo.

Samsung Magician confirms that the drive is running the latest firmware (FXG42P2Q).

Performance Tests

Testing was performed on a Lenovo Legion 5 Gen 6 Intel laptop (17ITH6) with the USB 4.0 capable USB-C port. Most tests were performed under fan cooling to expose the underlying maximum best-case performance for the drive, except where noted. The default exFAT formatting was retained for testing.


CrystalDiskInfo is able to retrieve the drive health information and confirms the use of an NVMe SSD internally. The drive had 1GB total reads and 0GB writes at commencement. Tests were all completed with about 7.7TB of writes and 9.3TB of reads (due to some tests being repeated, aborted). Drive unplugging and system rebooting seem to have contributed to the unsafe shutdown count, although no faults and no reduction in media lifetime was encountered with this number of cycles.

HDTune Pro

While the drive is compact and reaches high levels of performance, it does also seem to be thermally constrained, as it heats up to a relatively warm 45-50 degrees Celsius. When the drive is hot, it appears it thermally throttles performance which even affects the read speed. When unthrottled, reads sit around 950MB/s, dropping to about 325MB/s while throttled.

When placing the unit under a fan, it was able to achieve a full read average of 947.2MB/s. This is not quite the 1,050MB/s on the box, but USB being what it is, it is not unexpected.

The thermal situation with regards to writes is even worse. While the drive is able to reach 940MB/s writes when unthrottled, performance seems to drop off by about 80GB of writes to somewhere in the 675MB/s ballpark. Thermal throttling kicks in regularly, dropping the speed to about 150MB/s for a period until temperatures recover.

Running the drive over a fan, the average write speed of a (dirtied) drive reaches 765MB/s. This is notably faster than any SATA-based SSD but is still shy of the 1,000MB/s stated on the box. I suppose that would only apply for the ideal “clean” SSD scenario, and only for the pSLC part of the drive.

The random access tests did show about 3,500 IOPS read and 12,800 IOPS write, however, I suspect this is not a true reflection of the drive’s capability as the benchmark may not have been able to go any faster. Regardless, the encouraging thing to take away from this is that there did not seem to be any access time spikes – unlike many low-end microSD cards and USB flash drives!

A full write and verify was completed in 4h 37m 23s – this speed is quite a bit slower than expected, but may be a result of the tool itself not being able to keep up with the drive in terms of generating and verifying random data.

Extra Tests were also run although they are not highly relevant to SSDs.


Using the default profile, the CrystalDiskMark appraisal of the drive performance seems a little more optimistic. In this case, it does reach the rated read speed and exceeds it slightly, but the write speed still falls short. The random 4kB access performance is quite good, especially considering it is an external drive.

Using the peak-mix profile, it seems the 4kB random read IOPS reached 65k and write IOPS reached 55k with a mixed profile returning about 61k IOPS. That’s not bad at all!

The real-world mix profile was perhaps less demanding using single threaded access, but the numbers are not bad at all, especially considering the access latency figures.

AS SSD Benchmark

It seems AS SSD doesn’t break the 1000 score barrier, which is a shame, although the raw figures don’t look bad. I suppose the 10Gbit/s USB interface is still the limiting factor especially with regards to reads. For reference, an internal M.2 SSD can score about 5k+ while a SATA SSD usually scores in the 300-800 range.

Unfortunately, the copy bench results were surprisingly poor. I’m not sure what the reason is behind this, but I do know that this benchmark does spew out some unexpectedly high results for some drives, and low results for others.

No compression-related effects are seen although there are occasional dips in the write speed line which may be related to internal management activities.

Anvil Storage Utilities

As someone used to seeing scores of about 2,800 for USB-based storage, it is nice to see something a bit snappier. It’s not internal-grade (17k+ score) performance, but it’s a good half-way there.

ATTO Disk Benchmark

The throughput seems to hit its maximum by about 128KB for writes and 256KB for reads. Of note is that some small dips in write performance are seen at 12MB and 48MB lines – this was a trend that was repeated across retests, so may be indicative of internal management functions or is a consequence of alignment in the factory exFAT formatting.


No data integrity errors were reported from the h3testw test. The total time taken is just shy of two hours – a bit shorter than the HDTune full random erase and verify, but this too is perhaps constrained by the capability of the application rather than the drive.


Overall, the Samsung T7 withstood the commissioning tests and passed with flying colours. It is a relatively compact and minimalistic high-performance USB 3.2 Gen 2 SSD which can be had at reasonable prices from time-to-time. It doesn’t always achieve the speeds indicated on the box, in part due to thermal throttling, but is still much faster than a SATA-based SSD in a box and is quite a bit more compact. Its weight is a bit heavier than stated on the box, but is still relatively light, weighing in at 67.67g. While it does run at 10Gbit/s link rates, the SSD inside could possibly go faster – it’s a shame that it doesn’t have a 2×2 or USB 4.0-capable chipset. It also would have been nice of them to include a pouch or something, rather than focus on the cardboard “unboxing experience”, but that’s probably a bit much to ask. As long as this one stays reliable, I think it’s a pretty good drive to have around.

This entry was posted in Computing, Flash Memory and tagged computer storage, flash, flash memory, new stuff, review, ssd, tested, usb. Bookmark the permalink.

is not the SSD you were expecting Platforms for them have been ready for a long time, and the developers promised to provide a shaft of such SSDs at the end of last year. However, these plans were not destined to materialize. Phison, which was responsible for the transition of consumer SSDs to use the new interface, did not cope with its task within the agreed time frame. Its new Phison E26 controller has not yet gone into production, and the release of the promised PCIe 5.0 SSDs has been delayed by several weeks, maybe even months. There are no alternatives to this chip on the horizon either — the rest of the engineering teams working on controllers for consumer SSDs are even further away from the release of PCIe 5.0 solutions.

However, this does not mean that there are no interesting new products in the consumer SSD market. Not so long ago, Samsung updated its flagship solid state drive. Contrary to expectations, the new 990 Pro has not yet moved to the PCIe 5. 0 bus, but it is still a very interesting model. The fact is that in it, South Korean developers for the first time for consumer SSDs promised an increase in small-block performance up to 1.5 million IOPS, which exceeds the indicator of its predecessor, and other PCIe 4.0 SSDs, at least one and a half times. And that means Samsung 990 Pro at least should not repeat the fate of 980 Pro, which could not become the undisputed leader among consumer SSDs. And as a maximum, the novelty has a chance to noticeably break away in terms of performance from all other modern PCIe 4.0 SSDs and become the best option on the market for some time.

In other words, Samsung is clearly hinting that it has finally got a worthy successor to the 970 Pro traditions — with an old interface, TLC memory, but still inaccessible to competitors. In this review, we will check how true these statements are, and try to understand whether there was in 9The 90 Pro is the place for Samsung’s signature magic.

⇡#Appearance and internal structure

Everyone has long been accustomed to how Samsung NVMe drives look like. They are invariably assembled on black textolite and are covered with stickers on both sides, and one of them (on the back of the drive) is based on a layer of copper foil to help cool.

However, Samsung 990 Pro now has another version — with a heatsink that wraps around the drive on both sides. It’s $20 more expensive, but better suited for a PlayStation 5 or motherboard that doesn’t have its own M.2 cooling system. By the way, in the latter case, it may also be appropriate that this time Samsung added controlled RGB backlighting to the radiator.

However, sales of the version with a heatsink have not started yet, so we tested a regular Samsung 990 Pro, no heatsinks. There is no need to talk in detail about its foil sticker — such solutions are used everywhere, so let’s immediately consider the layout and filling.

The Samsung 990 Pro is based on a new proprietary Pascal controller. Like the previous Elpis chip, it is manufactured using the 8nm process technology and is built on Arm architecture cores. Samsung developers do not feel the need to share details of how they managed to increase the power of their controller this time, but it is known that optimizations in Pascal have affected the flash array mechanism, which began to allow parallelism in more stages, and internal caching is now spreading including read operations.

The second change in the 990 Pro is memory. The microcircuits installed on the drive are marked K9DVGY8JRD-DCK0, which indicates the seventh generation proprietary TLC 3D V-NAND — with 176 layers. It is worth noting that at the end of last year, Samsung announced a denser memory with 236 layers, but it did not get into the 990 Pro, also because its crystals have a capacity of 1 Tbit, which is not very good for a productive SSD. The 990 Pro uses 512Gb chips, so even the 1TB drive I chose for this review has an eight-channel memory array where the controller can take advantage of 2x interleaving.

That being said, the 176-layer memory has a number of advantages over the old 128-layer TLC 3D V-NAND that Samsung is installing in the 980 Pro. It has an increased interface speed of 2.0 GHz versus 1.2 GHz, provides 11% lower read latency, and is more than twice as fast to program. All this is achieved through major changes in the architecture: the seventh-generation flash memory crystals are divided into four, not two banks, plus, for the first time, Samsung placed the logic under the NAND cells in them. As a result, 176-layer TLC 3D V-NAND achieved a data density of 8.5 Gb/mm 2 , which in theory means its lower cost.

Since the 990 Pro is a flagship drive, there was room on its board for its own DRAM buffer. In this case, LPDDR4-1866 memory is used, its volume is selected according to the standard formula «1 MB of buffer per 1 GB of drive capacity.» Therefore, a single 1 GB LPDDR4 chip is installed in a 1 TB drive.


In fact, Samsung 990 Pro is a further development of the 980 Pro, but without switching to a faster interface. At the same time, Samsung replaced all key components in the new drive, so we are talking about a fundamentally new product, which, judging by the specifications, has become much faster without PCIe 5.0 support.

Manufacturer Samsung
Series 9 9 0 Pro
Model number MZ-V9P1T0BW
Form factor M.2 2280
Interface PCI Express 4.0 x4 — NVMe 2.0
Capacity GB 1000 2000 4000
Flash memory: type, manufacturing process, manufacturer Samsung 176-layer 512Gb TLC 3D NAND n/a
Controller Samsung Pascal
Buffer: type, capacity LPDDR4,
1024 MB
2048 MB
Max. sustained sequential read speed, MB/s 7450 7450 n/a
Max. sustained sequential write speed, MB/s 6900 6900 n/a
Max. random read speed (blocks of 4 KB), thousand IOPS 1200 1400 n/a
Max. random write speed (blocks of 4 KB), thousand IOPS 1550 1550 n/a
Max. power consumption, W 7.8 8.5 n/a
MTBF (mean time between failures), mln h 1.5
Recording resource, TB 600 1200 n/a
Warranty period, years 5
Dimensions: L × H × D, mm 80 x 22 x 2.3
80 × 24.3 × 8.2 (with heatsink)

The table shows the detailed characteristics of only two versions of the Samsung 990 Pro with a capacity of 1 and 2 TB, although Samsung promised to release a 4 TB modification. However, at the moment it is not ready, since it requires 1 Tbit TLC 3D NAND chips, which Samsung does not yet have. Therefore, the most capacious version of the novelty will be released later, sometime during this year.

But even without it, the Samsung 9 range90 Pro has undergone a big change. The younger version now has a capacity of 1 TB, while the 980 Pro exists in 250 and 500 GB versions. This is partly due to the increase in the capacity of seventh-generation TLC 3D V-NAND chips — their use in small SSDs would limit the parallelism of the flash memory array and drop performance to an inappropriate level for a flagship product.

On the other hand, by eliminating small containers, Samsung was able to make the numbers in the feature table look very nice. Even despite the interface PCIe 4.0, 9The 90 Pro is convincingly superior to the 980 Pro. The sequential read speed is 7.45 instead of 7 GB / s, and the write speed is 6.9 instead of 5.1 GB / s. What’s more, Samsung’s rated linear read speed is at least 50MB/s faster than any other PCIe 4. 0 drive. So far, there are no such SSDs that would promise a higher linear recording speed than the Samsung 990 Pro.

Equally impressive are the performance characteristics of the 990 Pro in small block operations. Superiority over 9The 80 Pro achieves 40% and 55% read and write performance, and claims of 1.4M and 1.55M IOPS, respectively, are also the highest for the consumer SSD market. Even promising PCIe 5.0 products based on the Phison E26 controller do not promise to exceed them. Therefore, it is not at all surprising that the Samsung 990 Pro website proudly states: “It offers the highest speed available through the PCIe 4.0 interface.” Judging by the passport indicators, this is true.

But all manufacturer claims about peak performance need to be verified, and this is how the speed of Samsung 9 looks like90 Pro 1TB in CrystalDiskMark.

Comparison of the obtained numbers with those presented in the specification looks clearly not in favor of Samsung. The real linear read speed is at the level of 7. 1, and not 7.45 GB / s, a similar picture and when writing — 6.8 real instead of the promised 6.9 GB / s. Even worse is the ratio of real and passport indicators for small-block recording — in this case, the measured performance is 1.1 million instead of the promised 1.5 million IOPS. Only the maximum speed of small-block reading coincides with the specifications.

Obviously, Samsung itself was also unhappy with this state of affairs, so some time after the 990 Pro entered the market, it received a Full Performance Mode. It is activated through the proprietary Magician utility (version 7.2 or higher is needed), and its essence is to disable all power-saving features of the controller. Support for Full Performance Mode existed in past Samsung drives. However, in the Samsung 990 Pro, its activation gives a much more serious increase. Here’s how CrystalDiskMark scores change in 990 pro.

We can’t say that the inclusion of Full Performance Mode brings the peak performance of the Samsung 990 Pro to the level promised in the specifications, but a number of indicators rise quite significantly. First, the speed of linear mixed operations becomes higher. Secondly, the speed of small-block operations seriously increases in the absence of a request queue. And here even an important qualitative result takes place — Samsung 990 Pro turns out to be the first SSD based on TLC 3D NAND, capable of delivering performance significantly higher than 100 MB / s with non-pipelined random reading in 4 KB blocks.


For its SSDs, Samsung offers a special Magician service utility, which is constantly being developed and updated with new features. For example, its latest versions have a performance profile switcher with the ability to choose between energy savings and increased performance in Full Performance Mode. It is placed on a separate utility page.

Other features remain unchanged: the utility provides the user with a full set of diagnostic information, and also allows you to check the performance and status of the flash memory of the drive.

Magician recently added another extra page dedicated to RGB lighting control. It will be required by users who purchase the Samsung 990 Pro with a branded heatsink included.

Naturally, Magician has not gone away and the functions for comprehensive maintenance of the drive. The utility allows you to increase the size of the spare area, enable and disable TRIM support, perform the Secure Erase operation, enable hardware encryption of information on the SSD using the AES-256 algorithm, and update the firmware if necessary.

⇡#Description of the test system and test methodology

It is clear that the Samsung 990 Pro should be compared with other fastest PCIe 4.0 SSDs on the market. Therefore, the set of opponents chosen for him is predictable. Among them are the previous 980 Pro, the main competitor of the new WD Black SN850X, as well as an unchanged set of fast PCIe 4.0 drives built on three different eight-channel controllers. As a result, seven SSDs took part in the testing, information about which is given in the table.

Drive Article Interface Controller DRAM buffer Fl esh ram Firmware
ADATA XPG Gammix S70 Blade 1024GB AGAMMIXS70B-1T-CS PCIe 4. 0 x4 Innogrit IG5236 Yes TLC 3D NAND, Micron 3.2.F.3C
ADATA Legend 960 1024GB ALEG-960-1TCS PCIe 4.0 x4 SMI SM2264 Yes TLC 3D NAND, Micron A200V4TM
Crucial P5 Plus 1000GB CT1000P5PSSD8 PCIe 4.0 x4 Micron DM02A1 Yes TLC 3D NAND, Micron P7CR402
Samsung 980 Pro 1000GB MZ-V8P1T0BW PCIe 4.0 x4 Samsung Elpis Yes TLC 3D NAND, Samsung 4B2QGXA7
Samsung 990 Pro 1000GB MZ-V9P1T0BW PCIe 4.0 x4 Samsung Pascal Yes TLC 3D NAND, Samsung 0B2QJXD7
Seagate FireCuda 530 1000GB ZP1000GM3A023 PCIe 4. 0 x4 Phison PS5018-E18 Yes TLC 3D NAND, Micron SU6SM001
WD Black SN850X 1000GB WDS100T2X0E PCIe 4.0 x4 SanDisk 20035 Yes TLC 3D NAND, SanDisk 620311WD

The test system configuration was as follows:

  • GHz, 30 MB L3).
  • CPU cooler: Noctua NH-D15.
  • Motherboard: ASUS ROG Strix Z690-F Gaming WiFi (LGA1700, Intel Z690).
  • Memory: 2 × 16 GB DDR5-4800 SDRAM, 38-38-38-70 (Kingston Fury Beast KF548C38BBK2-32).

Testing was performed on Microsoft Windows 11 Pro (21h3) Build 22000.282.0 operating system with KB5008353 installed, which fixes SSD performance during random write operations. The system used the Microsoft Standard NVMe Express Controller 10.0.18362.1 driver.

The test drives were installed in the M.2 slot, to which the PCI Express lines are connected directly from the processor.

⇡#SLC caching: writing, reading and deleting files

SLC caching is the most important algorithm that is responsible for speeding up write operations in modern drives. Its essence lies in the fact that information on an SSD with TLC or QLC memory is first written in a fast single-bit mode, and its compaction occurs later, during idle moments of the drive. This means that modern drives can demonstrate high speeds only on limited amounts of data, the size of which depends on the specific implementation of the SLC caching algorithm.

To find out how it works in practice and what are the speeds of a flash memory array of specific drives when operating in various modes, we conduct a test to continuously write files to an SSD until its capacity is completely exhausted while simultaneously measuring performance. This test uses standard Windows single-threaded file copy operations to the SSD being tested (from a RAM disk), and the test is carried out in three passes: for a completely blank SSD; for an SSD half full of data; and for the SSD, which is initially three-quarters full.

Samsung calls its SLC caching algorithm the marketing term Turbo Write. In fact, this is a hybrid SLC cache, which has a fixed component and a dynamically changing appendage, consisting of TLC cells transferred to the SLC mode. In the 990 Pro, this algorithm was called Turbo Write 2.0, but its principles have not changed, only the volumes of the SLC cache have increased. A 1 TB drive has a fixed part of the cache of 6 GB, and a dynamic cache can reach up to 108 GB. For the 2TB version, these values ​​​​are 10 and 216 GB, respectively.

The graph below, based on the Samsung 990 Pro 1TB, shows that up to 114GB of data can be written to a blank SSD at high speed. The dynamic part of the SLC cache remains fully available even on a partially filled drive. Even if three-quarters of the space is occupied by data, about 100 GB of information can be written to the terabyte 990 Pro at high speed. However, the write speed after the capacity of the SLC cache is exhausted as the drive fills with data decreases. This is due to the fact that the transfer of the dynamic part of the cache to the TLC mode, which needs to be dealt with much more actively on a drive filled with data to free up space, takes away from the Samsung 9 controller90 Pro tangible part of the resources.

It’s worth noting here that the flash memory array built on Samsung’s 176-layer TLC 3D V-NAND doesn’t look very fast. If you look at the maximum single-thread write speed that is achieved in SLC mode, then the 990 Pro 1 TB, although it outperforms its predecessor, cannot offer performance higher than Micron’s 176-layer memory in competing drives.

When measuring the minimum write speed in Samsung TLC mode 990 Pro again remains without first place. In this case, it loses to its predecessor, the 980 Pro. However, this should not be surprising. Suffice it to recall that the new drive uses 512-Gb chips, which means that the degree of parallelism of the flash memory array has decreased.

However, in terms of average write speed across the entire capacity, the Samsung 990 Pro is equivalent to the 980 Pro and outperforms drives on all other platforms. In order to fill the new terabyte Samsung to the eyeballs with files, you need to spend only 8.5 minutes.

With single-threaded reading of files, the relative result of the Samsung 990 Pro is slightly worse. It runs almost as fast as its predecessor, which means that in this case, the decrease in parallelism of the flash array was quite compensated by its acceleration. At the same time, there are faster models among the current SSD models. In other words, in terms of simple file copying using Windows, the new Samsung 990 Pro cannot be called a clear leader. The speed it offers is good, but nothing more: it cannot offer any fundamental separation from the flagship models already on the market.

Where Samsung’s innovation consistently shines is when it comes to handling file deletion operations. Like its predecessor, the 990 Pro can clean up flash memory and carry out garbage collection completely imperceptibly for the user. Therefore, hesitation after erasing significant amounts of information is not about the 990 Pro. To illustrate, below is the performance of small block reads immediately after releasing 64 GB of data on the SSD, and no dips are visible in this graph.

Moreover, in Samsung 990 Pro engineers were able to eliminate bursts of latency, which in similar conditions are observed in the 980 Pro.

⇡#Performance of complex file operations

When copying files inside the drive, the Samsung 990 Pro manages to show the best performance among all rivals, but its advantage over the 980 Pro is symbolic. However, the situation is different for asymmetric operations. In the case of archiving files, the new 990 Pro noticeably loses to both its predecessor and the WD Black SN850X. And when unzipping, the result is like that of Samsung 980 Pro, the new 990 Pro only outputs in a special Full Performance Mode (abbreviated FPM in the diagrams). In its normal state, it is noticeably slower and comparable in speed to drives based on the Phison E18 platform.

Summing up all this, it remains to be concluded that in terms of ordinary file operations, the Samsung 990 Pro is not at all better than its predecessor, and it does not deserve the title of the fastest PCIe 4. 0 SSD.

⇡#Performance in applications

The SPECworkstation 3.1 benchmark evaluates the performance of drives by simulating workstation workloads. And as you can see from the results, the Samsung 990 Pro is very well suited for heavy professional applications. Here, the new SSD of the South Korean company boasts not only the maximum result at the moment, but also a noticeable advantage over other PCIe 4.0 SSDs, which we previously classified as flagships. For example, it is very significant that the common Phison E18 platform, as well as the WD Black SN850X drive, turned out to be slower than the Samsung 990 Pro by more than 40%.

Graphs based on the results in various scenarios help to understand why the Samsung 990 Pro made such a powerful breakthrough. The novelty «fired» in two load cases: when working with multimedia and 3D content and in specialized applications for solving problems from the natural sciences.

SPECworkstation 3.1

⇡#Performance in games

But the best SSD for games from Samsung 990 Pro did not work out. The new drive is significantly faster than the Samsung 980 Pro and bypassed all SSDs on public platforms, but could not catch up with the leader in this discipline in the face of the vertically integrated WD Black SN850X. Even with the inclusion of a special mode of maximum performance, which additionally and very noticeably increases the gaming performance of the 990 Pro, it only catches up, and does not overtake Western Digital’s flagship SSD.

And if you look at the components that make up the result in 3DMark, it becomes clear that the titles of the best SSD for games Samsung 9The 90 Pro doesn’t deserve it, even with Full Performance Mode. The fact is that in those operations that are of interest to gamers in the first place, namely when loading games from a drive, the Samsung 990 Pro is inferior to the WD Black SN850X.

3DMark Storage

⇡#Synthetic tests: linear operations

Recall that in this section we are comparing not uninteresting for users peak performance values ​​that CrystalDiskMark gives, but indicators close to real life. For measurements, IOmeter is used with loads with a request queue depth of no more than 4 commands — these are the SSD operations that you have to deal with when working in a PC.

The Samsung 990 Pro shows a relatively weak result for linear reads, an average result for linear writes, and a rather high result for mixed operations. Moreover, in the case of reading, it noticeably loses to its predecessor, which is due to the transition of the novelty to the use of NAND devices with a volume of 512 Gb and a decrease in array parallelism.

⇡#Synthetic tests: small-block operations

The Samsung 990 Pro does not perform well in random operations with 4-KB blocks either. He definitely became faster than his predecessor, but he is far from leading. Despite all the victorious reports of Samsung, there is no fundamental separation from drives from other manufacturers 990 Pro does not show.


SSD heating during operation depends mainly on two factors: on the process technology by which its controller is made, and on performance. The first parameter of the Samsung 990 Pro remains the same as in the 980 Pro. The new Pascal chip, like the previous Elpis, is produced according to 8nm standards, although Samsung has already transferred some controllers for SSDs to the 5nm process technology. The performance of the Samsung 990 Pro has become higher, so it is natural that the new drive turned out to be hotter.

The thermogram below, made during the active operation of the 990 Pro, shows the heating of the Pascal chip to 95 degrees, while the maximum temperature that we recorded with the Samsung 980 Pro controller was only 80 degrees. Stronger began to warm up and flash memory. Chips of 176-layer TLC 3D V-NAND reach temperatures of 85 degrees.

Curiously, at the same time, Samsung talks about a 1.5-fold superiority of the 990 Pro over its predecessor in energy efficiency. But let’s leave this statement on the conscience of the manufacturer, perhaps it is based on the temperature indicators that the new drive reports itself through S. M.A.R.T. And they are quite noticeably underestimated: having warmed up to 95 degrees, the SSD reports that its temperature has only reached 83 degrees.

The graph below shows the change in S.M.A.R.T. SSD temperatures under a five-minute read-dominated mixed load.

Although the graph looks smooth, there is some throttling here. The protective temperature mechanism turns on the Samsung 990 Pro at 83 degrees. That is, it turns out that with continuous loads, this SSD is capable of delivering high performance for no more than two and a half minutes.

However, keep in mind that this result was obtained when the SSD was operated without additional cooling means. Obviously, when it is installed in a board equipped with an M.2 slot heatsink, the drive will not be in danger of overheating quickly. For those cases when the motherboard does not have such a radiator, Samsung is ready to offer a version of the drive with its own cooling system.


As follows from the above, the Samsung 990 Pro cannot be called a breakthrough drive. In order to become a real «king of the market», he lacks support for the PCIe 5.0 bus, and, frankly, he did not show any fantastically high performance. It is much more correct to talk about it as an evolutionary update of Samsung 980 Pro, achieved by optimizing the base controller and moving to the next generation of flash memory.

However, the combination of new components does not always give a clear positive result. In some cases, such as normal file operations, the Samsung 990 Pro is no faster than its predecessor, which benefits from the wider flash array parallelism.

At the same time, the new Pascal controller is clearly more powerful than the previous Elpis, and in complex mixed workloads Samsung 9The 90 Pro really looks good. He demonstrated his abilities in the best way in the professional test SPECworkstation, focused on comparing components for workstations. And this result shows well who should like the new Samsung.

As for gaming configurations, the WD Black SN850X remains the best choice for them, but it should be noted that with the advent of games based on the Microsoft DirectStorage library, the situation may change. In them in favor of Samsung 9The 90 Pro is capable of playing high IOPS with deep request queuing. But it is not yet possible to verify this assumption.

To be honest, we expected more from the new Samsung hard drive. The memories of the 960 or 970 series products are still fresh in the memory, which conquered peaks of performance inaccessible to other products. With the transition to PCIe 4.0, Samsung’s drive development began to stagnate. Yes, they are still good, but there are no more situations where Samsung-branded SSDs are head and shoulders above any alternatives.

In general, Samsung 990 Pro can be described as the answer of the South Korean giant to the spawning fast drives with Phison and Innogrit controllers, which challenged, and not unreasonably, the superiority of 980 Pro in performance. Now Samsung has put them in their place: no SSD on the Phison E18 controller can shake the position of the 990 Pro. The only problem is that the superiority of the new Samsung cannot be called unshakable, and the same Phison has a new platform on the way, which has a chance to again shift 990 Pro from the pedestal.

the fastest SSD today, although not as expected / HDD, SSD, flash drives, other storage media / iXBT Live

They say that waiting for the holiday is usually better
the holiday itself. Usually. But not when the holiday is cancelled. Or
turns out not to be as expected. For the second time in a row, Samsung has released a completely different top-end SSD, as individual enthusiasts and
company fans.

The first such event was recorded around
three years ago — when everyone was waiting for Samsung 980 pro. Well, since it’s “Pro”, then by analogy with other models with
this suffix was expected to use MLC memory. Only on the new interface — not SATA (as in 840 / 850 / 860 Pro) and not even PCIe Gen3 x4 (950 / 960 / 970 Pro), but already PCIe Gen4 x4. That is, in the opinion of many, the same reference “Gen4” should have turned out, which was the reference “Gen3” performed by Samsung 970 Pro. And no one was embarrassed that everyone else
manufacturers have already completely abandoned MLC-memory — Samsung continued to produce SSDs on it. Let in limited quantities and not
very willingly — no one expected so much. The main thing is the fact itself. Especially since
the market for PCIe Gen4-enabled systems was limited to
a small part of computers (and even then — only desktop, that is, a priori
minorities) based on AMD processors. Well, it seemed logical to stake out a place
on a small, but top — and show all competitors, where crayfish hibernate .

In fact, everything turned out quite differently. Having shown the 980 Pro at the beginning of 2020 at the exhibition, Samsung further about this line for a long time.
were silent, waiting for their holiday. Which did not fail to happen in the autumn of the same
year: when Intel brought to market a new laptop platform with PCIe Gen4 support. Instantly, the solution became much more widespread — and it immediately became clear that the Samsung 980 Pro is aimed not at some kind of elite consumption, but
is a normal SSD on TLC memory.
Just like others. Only fast. Even if not the fastest, but one of the most
continues to remain until now — although more than two years have passed and a
a host of superior competing products. Only here and much more
even more slow ones have appeared — since the market develops first of all
thanks to the budget segment. No wonder — he is the majority
sales have always been necessary, so it would be strange to expect the opposite. Basically 980 Pro can
it was calm to continue selling further — but last year the company began to talk
about the 990 Pro.

What was expected of him? They have already stopped counting on the return of MLC memory even
the most violent — with the fact that this page of history is turned upside down forever, resigned
already they. But there were systems with support for PCIe Gen5. Intel was the first to bring its platform to the market a year and a half ago, but limited to only 16 lines
new interface. By default directed to the video card — but no one
prevents them from being taken away from such. At least a part. A year later, AMD rolled out its AM5 platform. And as one of the advantage
such has repeatedly emphasized that the PCIe controller of new processors provides Gen5 on all lines — including
designed to connect SSD. Due to the lack of such, there was little sense at first — but Phison has already announced its E26. Now SSDs based on it have begun to appear, and
as yet no model even the potential capabilities of the controller fully realize
it can’t, but the real gain from the new interface is… well, you get the idea.

But many were sure that the Samsung 990 Pro would be designed specifically for PCIe Gen5 x4. Because somehow
it just so happened — it was planned for the fall of last year and the AMD AM5 platform was supposed to appear at the same time. So, apparently, one under the other. And about others
many did not even imagine the reasons for the release of a new line. Especially,
Samsung fans are confident
is that the 980 Pro is the best SSD on the market. And since the best, there is nothing to change it for — only for
even more best
. Is not it?

Not really. What everyone is working on
flash memory manufacturers (and Samsung is no exception) — reducing its cost. The main way to do this
now is to increase the number of layers, or the packing density of bits in
each cell (remaining unchanged since the 80s of the last century — this is exactly
one FET). But the second radically spoils the speed and endurance
memory, so it is unsuitable for top-end SSDs. But the first is good everywhere. And with this
point of view 128-layer memory in line 980 Pro has already become archaic. Second way
cost reduction — increase in the size of crystals and pages. For
performance is also not very good, but the price decides. And crystals by 256
Gbps, which were used in the 980 Pro with a capacity of up to a terabyte, have also become archaic. In 2020
year, the company still had no choice — if only because it wanted to produce
fast models for 250 and 500 GB. But now they are no longer needed — buy a small
SSD on the top
platform is meaningless: it will still not be too fast, but it will cost
noticeably more expensive than a sensible «middling» on a cheaper controller. Those
in 2020 it wasn’t, but it is now. Not yet at Samsung — but you can not go to a fortuneteller so that
understand: what will be the new 990 «without suffixes». Yes — with a probability of 146% there
there will be a four-channel bufferless controller, but with support for PCIe Gen4. Such a company would have been needed already yesterday — since today it has to
OEM PM9B1 release on Marvell controllers, not their own. But potential
orders for such models are large — so that their own analogue will appear. And «take away»
all those who need an inexpensive, but fast SSD up to a terabyte. And the 990 Pro should be the top no-compromise solution for those who
wants to buy a capacious and fast SSD — and is ready to pay for it. So the target capacity is the same 2
TB, like competitors. Well, for terabytes, of course, there is a steady demand,
but if such a modification is already slower than the older one, you can safely do this
close eyes. Previously, it was impossible. But support for PCIe Gen5 is still needed . .. almost no one. Except for a certain amount
enthusiasts, and even those for the most part will not buy it, limiting themselves
reading reviews and writing thoughtful comments.

All in all, it’s no surprise that the Samsung 990 Pro turned out to be nothing like what some expected. But precisely
the way it should have been. 176-layer memory with 512 Gb chips economically
more profitable than the old 128-layer with 256 Gb crystals. Concerning
speed, then with the appropriate controller it can also increase —
the old memory had an interface with a speed of 1200 MT / s per channel, and the new one “squeezes”
up to 2000 MT/s: today this is the maximum on the market. So, ceteris paribus, the performance
may grow. But with equal — which is the capacity of 2 TB, on which and
previously used crystals of 512 Gbit. Terabyte will now become
slower — fewer crystals, so double alternation instead of
quadruple. But in the previous line it was a little, but faster — about
this is worth remembering.

Memory with a new interface required modification
and controller. Although it cannot be said that the chip codenamed «Pascal» has become something radically new — in fact
this is a modified «Elpis»
previous family. With the correction of errors, refinement of algorithms, etc., but
nothing more — even the technical process remained old. Many would prefer something
thinner as it would reduce power consumption and
heat dissipation, which is large for top controllers when fully loaded,
but that didn’t happen. But the “Full Performance Mode” mode appeared, in which the
energy-saving technology, allowing you to stuff a little more parrots into
some tests — albeit at the cost of increased power consumption. Turns on like
and put in the proprietary utility. In fact, there is nothing new here — the first in these
games started playing WD yet
four years ago. As well as many manufacturers complete their SSD with heatsinks,
Yes, and Samsung itself quietly began to do this even with the previous line. Another
the question is that now the radiator will receive RGB backlighting, but, firstly, these versions need to
wait, and second, experience 980 Pro shows what is possible for Samsung’s «branded» markup and what is better on the market
search (if you want to).

From a consumer point of view, the Samsung 990 Pro is not too different from the 980 Pro. Rather, it is a modified version — and more
beneficial for the manufacturer: the actual cost is lower, but you can sell
more expensive — new. Well, formally — the controller is new, the memory is also new, so
that it is quite pulling to update the model number. Upgrade from 960 Evo/Pro to 970 Evo / Pro was in
the same accuracy. And the 970 Evo Plus cost an additional suffix
just because only the memory changed there, but not the controller. Well, the previous
«Update» of the Pro-line
as a replacement for the 970 Pro
980 Pro and
at all upset many — because everything has changed in general, but far from everything in
better side. Here at least there will be no such problem — it has not become worse
Nothing. As for performance, let’s see. Comparing 990 Pro with PM9A1 (OEM equivalent of 980 Pro) the same
capacities — fortunately, I repeat, in the new line just 2 TB are targeted.

We see almost nothing in such simple scenarios.
Except that the speed of writing to the SLC cache has increased significantly from 4.1 to 5.5 GB / s. But outside it we get
only 300 MB/s extra. However, once on their own 300 MB / s records
looked beautiful, and now — in addition to what was. So get hit
in cash, perhaps we will be more often — which is good. Yes, and in itself an increase in speed
records within it are useful — after all, in fact, most operations fit into it.
But fundamentally, the behavior of the new generation of Samsung drives has not changed. Cache a little more — but
we remember that earlier it was simply slightly reduced for 2 TB models. Now
returned to the place.

The second pass «over the garbage» shows about the same
most — 250 MB / s more than before. Working with the SLC cache (and the controller, like the old static
the cache area cleans itself at the first opportunity) is normalized — but, again,
to the level inherent in terabyte models before. In fact, it is not so easy
the old family got 2 TB — such SSDs appeared later, and their parameters had to be worsened. A
now this is just the “main” capacity — like competitors.

And here are the promised optimizations — earlier in
full state SLC cache
was not enough, so in this test, the write speed in at least one stream, at least in
somewhat dropped to 2.5 GB / s. Yes, and in the ideal case, and up to 3.8 GB / s
reached, although some competitors have already stepped over four years ago. Here
in the new line, and Samsung caught up with everyone — and overtook the majority. Although the SLC cache is no longer, but the high speed
Recordings can be provided stably. Changes in the algorithms of work were enough —
although at a low level it was not reflected. But the maximum reading speed, on the contrary,
fell — although the official specifications promised the opposite. But this is ordinary
practice — manufacturers like to announce the results of low-level benchmarks,
and often with arbitrarily pretentious settings, radically divorced from practice. And it is still much more affected by reading in one stream —
where you can’t really come up with anything new.

But it is more interesting to see how it is in the complex. AND
not only in the range of Samsung, but in comparison with other SSDs of a similar level. This will allow us to do PCMark 10 Storage Full System Drive, which evaluates the performance of SSDs on a wide range of tasks — from loading the operating
systems to simple data copying. And we will take the guidelines from the previous materials.
Predecessors — two in fact: 980 Pro 1 TB and PM9A1 2 TB — because today
we are studying a new two-terabyte, but previously the fastest was a terabyte. Here is the Kingston KC3000 1 TB on the Phison E18 — you would also need a two-ter, but what is there. Digma
The Top G3 2TB is the fastest InnoGrit IG5236 SSD I’ve come across so far. And WD Black SN850 2 TB is the same age
Samsung 980 Pro, yet faster in many ways
scripts all the time. True, his replacement has also already come out, but with it somehow later
let’s get acquainted — but for now let’s see if the old 990 Pro can handle it.

Well, according to this test package, the Samsung 990 Pro is the fastest, and by a solid margin from all
competitors. In fact, he overtakes them even with a limited number
free space, but the immediate predecessors and even the same SN850 calmly bypasses even on the old
interface. Here, however, you can turn on the internal conspiracy theorist — and remember
that the firmware can be optimized for specific programs. But if everything
It was so easy, so everyone would use it. And in general: updated software for
old models — they overtook all rivals. However, nothing of the kind
observed — results in PCMark10 Storage for all
manufacturers are growing, but not from scratch — and often by low-level tests
it is possible to find the reasons for this growth. It’s just long enough and tedious, but
parrots «brand» are good for their simplicity. Well, the reduction of all quite vital
scenarios to one numerical indicator — which has its drawbacks, but not
for a quick assessment. By the way, the leaders, as before, remain Optane SSDs — even the old man 900P sample of 2017 is gaining 5000 points. But the gap, it should be noted, slowly
is shrinking.

Okay. Let’s get back to the Samsung 990 Pro. This is not the line that many were waiting for. To be fair, we waited
virtually — in practice, none of the waiters would urgently run for a new
platform with PCIe Gen5 support. Yes, and having bought such a thing, it’s not a fact that I was in a hurry
with an SSD. What Samsung understood no worse than others,
naturally, releasing such a device that can be sold in bulk (respectively
segment, of course — top-end SSDs are generally sold much worse than budget ones), and which can be usefully
take advantage now. At the forefront, of course, was the transition to a new
memory. And I would not be surprised that only a partially updated controller of her
opportunities are not perfect. But to return to the leading positions
in terms of performance and that was enough. So the only drawback is any new
are expensive. But those that have ceased to be such are sold at a discount. Well, again
well, terabytes are still popular, but the company is primarily
focused on a capacity of 2 TB — there are no “little things” in this family at all, but 1
TV will work slower.