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Intel DC P3520 2TB Enterprise PCIe NVMe SSD Review

By: Jon Coulter | SSDs in IT/Datacenter | Posted: Jan 16, 2017 4:50 pm
TweakTown Rating: 97%Manufacturer: Intel

128K Sequential Write/Read




We precondition the drive for 6,500 seconds, or 1.8 hours, receiving performance data every second. A sequential steady-state is achievable in a much shorter span of time than a random steady-state. We plot both MB/s and Latency. We plot MB/s using blue scatter and Latency using orange scatter. We observe that steady-state is settles in at 1,000 seconds of preconditioning.


The DC P3520 is performing above its factory sequential steady-state write specification of 1,350 MB/s. Average steady-state write performance at QD256 is approximately 1,420 MB/s.





Sequential performance is important, and this is where we see a definitive advantage over SATA-based SSDs. The DC P3520 turns in its best average performance at QD1. None of the other SSDs in our test pool perform best at QD1. At QD1, the mainstream DC P3520 is outperforming the high endurance, high-performance DC P3700. We observe a performance drop of roughly 50 MB/s at QD4.






The DC P3520 comes on strong at QD8, delivering over twice the performance of the SATA SSDs in our test pool. At QD16 and higher, the DC P3520 is cranking out more than three times the sequential read performance of a typical SATA SSD. The DC P3700 has a 700 MB/s advantage over the DC P3520 at higher queues; however, the DC P3520 is a much more power efficient SSD.


Conclusion (TL;DR): The DC P3520 can deliver approximately 3.5X the sequential read performance of SATA SSDs, making it ideal for read-centric applications that benefit from more than the best SATA has to offer.

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