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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

8K Random Write/Read




We precondition the drive for 16,000 seconds, or 4.44 hours, receiving performance data every second. We plot this data to observe the test subject's descent into steady-state. We plot both IOPS and Latency. We plot IOPS (represented by blue scatter) in thousands and Latency (represented by orange scatter) in milliseconds. We observe steady-state is achieved at 7,000 seconds of preconditioning. Average steady-state write performance at QD256 is approximately 15K IOPS.





8K random is a more demanding workload than 4K. This time the DC P3700 has the advantage at QD1. The DC P3520 is performing above factory spec (14K) across the board. The DC P3520 outperforms the SATA-based SSDs in our test pool, either slightly, or by a significant margin. Most importantly it outperforms current SATA-based SSDs at QD1 and does so at a similar price-point.






Just as we saw with our 4K testing, the DC P3520 outperforms the DC P3700 at queue depths of 1-4. With 8K random read data, the DC P3520 displays a huge advantage over SATA-based SSDs at queues above QD16. At QD128, the DC P3520 is delivering 3.5x the performance of the most powerful SATA SSDs. Read-centric workloads at higher queue depths is where the DC P3520 really hits its stride.


Conclusion (TL;DR): The DC P3520 delivers exceptionally strong performance when reading random 8K data at queue depths of 16 and above, where it clearly separates itself from SATA-based SSDs. Additionally, the DC P3520 outperforms the DC P3700 at QD1-4 when reading 8K random data.

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