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Samsung 850 EVO 4TB SATA III SSD Review

By: Jon Coulter | SSDs in Storage | Posted: Sep 26, 2016 1:00 pm
TweakTown Rating: 99%Manufacturer: Samsung



Version and / or Patch Used: 2.47


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





Compressible sequential read/write transfers max out at 560/535 MBs. Keep in mind this is our OS volume, and it is filled to 75% of its total capacity. The 4TB EVO, like all Samsung SSDs, displays a beautiful performance arc that ramps quickly and steadily. Maximum sequential read performance is achieved at a 1MB transfer size, maximum sequential write performance at 4MB transfers.


Sequential Write




The 4TB EVO delivers the best small-file performance up to 2KB transfers. At 4KB, Toshiba's VX500 leads the field. The 4TB EVO regains the lead at 8KB transfers and keeps it for the remainder of the test.


Sequential Read




Corsair's Neutron XTi wins this portion of the test. The 4TB EVO, 2TB EVO, and 2TB 850 Pro all perform about the same; battling it out for second place. OWC's dual controller, MLC-powered Mercury Electra 6G brings up the rear as it will be doing from here on out.



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 typically provides us with a good indication of a drive's overall performance. Samsung's 850 Series SSDs deliver tremendous performance in all categories, which is why they always score so much better than competing solutions.


The 4TB EVO shows a nice improvement over its smaller 2TB sibling. The 2TB 850 Pro wins this test. OWC's Mercury Electra shows us why it is best suited for archiving data.


(Anvil) Read IOPS through Queue Depth Scale




The 4TB EVO leads at the beginning and again at the end of the test. It outperforms the 2TB EVO slightly across the board. SanDisk's X400 handily outperforms the field at QD2-8 before dropping off at QD16-32. The 2TB 850 Pro is the fastest of the 850 Series in this testing. Overall, we give the win to the X400 as it outperforms the field at common consumer queue depths. OWC's Mercury Electra has us wanting to open it back up again just to make certain it is actually an SSD.


(Anvil) Write IOPS through Queue Scale




This is a win for the 850 Series as a whole. All three models perform about the same from start to finish. The Mercury Electra does what it does in convincing fashion.

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