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OCZ RevoDrive 400 M.2 NVMe PCIe SSD Review

By: Jon Coulter | m.2 SSDs in Storage | Posted: May 24, 2016 1:00 pm
TweakTown Rating: 99%Manufacturer: OCZ Storage Solutions



Version and / or Patch Used: 2.47


ATTO is a timeless benchmark used to provide manufacturers with data used for marketing storage products.





Sequential read/write transfers max out at an impressive 2,697/1644 MB/s with the 512GB RD400. Keep in mind this is our OS volume, and it is filled to 75% of its total capacity. We note the impressive performance at 4K transfers. The highest sequential performance is achieved at 512KB transfers.


Sequential Write




Both the 512GB and 1TB RD400 exceed the performance of the 950 Pro at 32KB-8MB. The 1TB RD400 outpaces the 512GB model. The 256GB RD400 outperforms the 256GB 950 Pro handily.


Sequential Read




The RD400's all perform similarly when reading sequential data. All three capacity points outperform Intel's best consumer SSD. We observe the RD400's momentary lapse in performance at 32-64KB transfers. This is exactly what we observed when we tested the XG3. Overall the 950 Pro's display a better performance curve.



Anvil Storage Utilities


Version and / or Patch Used: 1.1.0


Anvil's Storage Utilities is a storage benchmark designed to measure the storage performance of SSDs. The Standard Storage Benchmark performs a series of tests; you can run a full test or just the read or write test, or you can run a single test, i.e. 4k QD16.








Anvil's scoring gives a good indication of a drive's overall performance. In terms of overall scoring, the RD400's are able to best Samsung's competing solutions. The RD400's superior write performance really adds to the overall score which is the reason their total score exceeds that of the 950 Pro's. This is also the reason Intel's 1.2TB 750 wins this test with a high score of 12.7K. The 950 Pro's display superior read performance, while the Intel 750 displays inferior read performance at consumer queue depths.


(Anvil) Read IOPS through Queue Depth Scale




The RD400's outperform the Intel 750 up to QD16 (consumer queue depth). The Samsung drives display the best performance up to QD16 and QD32. At queue depths above 32, Intel's 750 1.2 TB hits its stride and distances itself from the competition. Realistically, though, it is a rare occurrence when a consumer based SSD hits queue depths of 32 or greater.


(Anvil) Write IOPS through Queue Scale




The Intel's 1.2 TB 750 easily wins this test. The Samsung SSDs max out at QD2-4. The RD400's all display better QD1 write performance than the 950 Pro's and much better write performance overall. Just as it is listed in OCZ's factory specifications, the 256GB RD400 delivers the highest write IOPS of the three capacity points at QD32. We note that we are getting far higher write IOPS at QD32 than factory specifications indicate. We note that at QD8 and above the 256GB RD400 is pumping out double the IOPS of Samsung's 950 Pro 256GB.

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