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Samsung 850 EVO 250GB 3D V-NAND SSD Review

By: Chris Ramseyer | SSDs in Storage | Posted: Dec 8, 2014 9:05 pm
TweakTown Rating: 97%Manufacturer: Samsung

Anvil Storage Utilities


Version and / or Patch Used: RC6


So, what is Anvil Storage Utilities? Well, it's a storage benchmark for SSDs and HDDs where you can check and monitor your performance. The Standard Storage Benchmark performs a series of tests; you can run a full test, or just the read or the write test, or you can run a single test, i.e. 4k QD16.


Anvil Storage Utilities is not officially available yet, but we've been playing with the beta for several months now. The author, Anvil, has been updating the software steadily on several international forums, and is adding new features every couple of months.


We can use Anvil several different ways to show different aspects for each drive. We've chosen to use this software to show the performance of a drive with two different data sets. The first is with compressible data, and the second data set is incompressible data. Several users have requested this data in our SSD reviews.



0-Fill Compressible Data




Incompressible Data




The Samsung 850 EVO 250GB doesn't perform any differently when working with incompressible data. The read and write performance is the same with incompressible and compressible data.



Low Queue Depth Read IOPS




We didn't manage to break the 10K random read IOPS mark on the 850 EVO 1TB, drive but got very close. The 850 EVO 250GB model did surpass 10K random read IOPS, and nearly reached 11K at a QD1. The new EVO model, like the 850 Pro, also scales very well as the queue depth increases. In this area, Samsung appears to have an advantage over other SSDs on the chart, even if only by a small margin.


High Queue Depth Read IOPS





Low Queue Depth Write IOPS





High Queue Depth Write IOPS




Random data writes also scale very well on the 850 EVO. Here, the TurboWrite SLC function allows the drive to quickly ramp up performance as the load increases.

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