The WD Blue SN550 is the first NVME M.2 SSD that comes with a 3D NAND memory chip and can provide performance up to 2,400 MB/s read speeds as well as 1,200 MB/s, write speed. This means twice the data transfer throughput when compared to SATA drives. The drive also has a staggering MTBF of 5 million hours which makes it an ideal choice for gamers who want high-speed storage without worrying about durability or capacity limits.

The WD Blue SN550 is Western Digital’s strong mainstream NVMe SSD that we’ll be examining today. It’s a high-quality product that’s also reasonably priced. The WD Black SN750 is aimed at the upper end of the pricing range, while the WD Blue SN550 is aimed at people on a tighter budget, with a basic aesthetic but good Performance.

This is another excellent Western Digital choice, particularly for those seeking a low-cost upgrade to improve Loading the Application times and in-game Performance. The earlier SN500 didn’t have a model with this capacity, so it’s nice to see WD include it in this iteration, and with speeds of 2.4GB/s, the Blue SN550 represents excellent value.



Capacity 1TB
Factor of Form M.2 2280
Interface x4 PCIe 3.0
Controller The Architecture of WD
Read in order 2,400 MBps (megabits per second)
Write in a sequential order 1,750 megabits per second


The WD Blue SN550 drive is an NVMe (non-volatile memory express) SSD. This type of SSD will pop into your motherboard M.2 slot as long as it can accommodate the 2280 Factor of Form. In addition, rather than using a SATA connection, the WD Blue SN550 uses four PCIe lanes, giving it eight times more bandwidth.


NVMe-based SSDs can read and write at over 3GB/s, much outpacing SATA-connected devices, which can only read and write at roughly 550MB/s. Quick M.2 drives, like this one, are ideal for gaming since they have breakneck loading speeds, allowing you to spend more time gaming rather than looking at loading screens! Large data transfers, such as video footage, may be handled more successfully with NVMe SSDs, which speeds up the process.

This model features The Architecture of WD with reading in order and write speeds of 2,400MB/S and 1,750MB/s, respectively.

With a brilliant royal blue hue and a black center, this SSD has a no-frills design that isn’t nearly as subtle as the Black version but is still pretty visually pleasant.


WD Blue SN550 NVMe SSD

We ran the WD Blue SN550 through various situations to see how it performed, comparing it against the speedier WD Black SN750 and the Samsung 860 QVO SSD. We set out to test this for more than just gaming, evaluating how long it takes various programs to install and launch in seconds.

Loading game saves

For some real-world results, we loaded many AAA games in places where we run our benchmarks at WePC. Then, we carefully compared the findings with the SN550 NVMe SSD and the Samsung QVO 860 to provide a realistic picture of the performance you may anticipate at home.

Warhammer II: Total War


We began a campaign named “The Eye Of The Vortex” in TW: Warhammer II and skipped the opening video, timing just the campaign loading. As you can see, the WD SN550 1TB was 30% faster than the SATA-connected drive while being almost comparable to the SN750 when margins of error are taken into account. Because this RTS game won’t be reloading campaigns regularly, the 11 seconds or so you save over a conventional SSD are likely to be one-time savings.

Red Dead Redemption 2 

Red Dead Redemption 2 is a sequel to Red Dead Redemption.

On RDR2, we loaded the game save at “Saint-Denis” because this is where we conduct our video benchmarking. Again, there is a significant difference, with the SATA-connected disk taking almost 30% longer than the NVMe drive. This makes the NVMe drive beneficial again, particularly if you plan on repeating missions, since it saves you roughly 12 seconds on this load.

The Witcher 3, Assassins Creed

When loading the levels we used for our tests, all three games showed no improvement, indicating that switching to an NVMe SSD only yielded a little performance boost. Argolis for Assassins Creed, the game save “City Of The Serpent” for SOTR, and the game save in Novigrad for The Witcher 3 were among the save loads.

Installation of the Application

To better understand what the SN550 can achieve, we timed how long it takes the drive to install non-gaming software. The time was collected from the point of clicking “install” (when it begins) to the end when the window changes and shows the “finish” button when doing these tests.


We wanted to pay attention to the differences between bigger and smaller drives while performing these tests, pointing out what we previously knew: SSDs with more capacity is often quicker.

Loading the Application

We used LibreOffice Calc, Libre Writer, and Gimp to test Loading the Application times. The test data consisted of a 3MB spreadsheet, a 10MB word doc, and a 20MB image. These files are slightly larger than you may typically be loading, but the results still show little difference.

It’s worth noting that these are often bigger files than most individuals would utilize in day-to-day work, yet there was little to no change except the occasional one-second departure.

Loading the Application

We tested significant 100MB word documents, 900MB spreadsheets, and 900MB photos, but after the program has loaded, it’s all CPU and RAM.


CDM (CrystalDiskMark) is a fundamental and easy-to-use benchmarking program. CDM is a free Windows program that provides a graphical test for the performance of our SSDs.


WD Green CDM


The findings on the far left demonstrate that the Sn550 achieves its total capacity and destroys the smaller WD green drive.

The read speed of the WD Black SN750 we tested was 3,496MB/s, while the write speed was 3,021MB/s, indicating that the performance boost for the price may be worth it if you’re prepared to spend.


ASSD manufacturers will use ATTOto assign sequential performance standards to their devices. We’ll use ATTO to determine how the drive handles various file sizes.




We anticipated the WD Blue SN550 to be substantially faster than the standard SSD, but it was also lightning fast compared to the WD Green SSD. There was no substantial decrease in file sizes between 128KB and 64MB, as we found with the Black on smaller files, with roughly 2GB/s. However, on files between 1 and 64 MB, the WD Black SN750 was roughly 1GB/s faster.


Another tool we utilize in our benchmarking is Anvil. This program enables us to test the drive’s speed to ensure it is correctly set and performing as intended.




Final Thoughts


The WD Blue SN550 is ideal for individuals on a budget who want to improve boot times. The Blue model’s price-to-performance ratio is excellent, and although the synthetics trail behind the Black model by a significant margin, in-game and application performance was equally impressive.

The Crucial P1 drive is still reasonably priced, but it lacks the WD Blue’s elegant look – yet both are excellent for low workloads and boot times. In addition, this drive operated consistently and at a modest cost, with acceptable performance even when subjected to high writes.

The Blue Sn550 is an excellent chapter option worth considering, with a five-year guarantee and an outstanding price-to-performance ratio.

Related Tags

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  • wd blue sn550 vs. sn570
  • wd blue sn550 compatibility
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