Seagate FireCuda 520 NVMe PCie 4.0 x 4 SSD Review (1TB)


For our Real World File Transfer Comparison of the world’s top M.2 NVMe SSDs, we have included nine of the top Gen 3 SSDs tested to date, along with the Seagate Gen 4 FireCuda 520. This test is conducted through the transfer of data from one spot on the test drive to another to give us the truest of transfer speed results for that device.


If you have been comparing at all, the Seagate FireCuda 520 has been sitting side by side with the Corsair MP600 Gen 4×4 SSD, and so it should as both have the same Phison E16 controller running things. Top two…


As of the date of this report, there are two PCIe Gen 4×4 NVMe SSD on the streets and both are virtually identical in their build.  They are the Seagate FireCuda 520 and the Corsair MP600, and although there are minor deviations such as the custom firmware in the FireCuda and the heatsink included with the MP600, performance in both is virtually identical.  Both establish a new performance plateau at over 5GB/s data transfer speeds, over 700,000 IOPS, and both have five year limited warranties.  Both of these are the fastest SSDs available today.


Pricing differentiates the two and, where the 500GB version separates each brand by only $5, the price of the 1TB and 2TB versions differs by $50 and $60 at Amazon, consecutively, and to the detriment of Seagate.  Some might mention that its the benefit of being a much larger company with a massive reputation, as Seagate is, and when looking at the user reviews on Amazon for the fireCuda 520, we can’t disagree.  In a very short time, they have sold a very healthy number of these SSDs and received some very good reviews in return.  Considering the fact that just about every one of these purchases meant building a new PC system to get the performance of PCIe Gen 4×4, that says alot for Seagate, as the MP600 says alot for Corsair.

As a bit of a personal note, we absolutely love seeing data transfer speeds continue to go through the roof.  Yes…we are speed freaks of a different cut.  Storage.

 Check out Seagade FireCuda 520 SSD Pricing at Amazon.



Seagate FireCuda 520 Review

Product Build
5-Year Warranty
Price and Availability

5GB/s Speeds

The Seagate FireCuda 520 NVMe SSD is one of the fastest performing SSDs on the market today, comes with a 5-year limited warranty and can be purchased in capacities up to 2TB. This is a great step forward in storage today.

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  1. blank

    Would be good to see some more details. Do these support multiple LBA formats and if so which ones? Do they support more than one namespace? How much data was written before running these benchmarks?

    • blank

      We don’t test multiple LBA formats and, with respect to namespace, the same applies for any SSD that is divided into one or more logical drives. I wouldn’t believe you could create one or more namespaces using multiple SSDs as the flash relies on each controller separately. Similarly, we are not testing this SSD as an enterprise SSD or at different levels of data present on the sample drive.

  2. blank

    It does seems like the pci4. 0 have not mu h performance gain compared to Samsung 970 evo plus.

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