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Samsung 860 EVO 1TB SATA III SSD Review

By: Jon Coulter | SSDs in Storage | Posted: Feb 26, 2018 2:00 pm
TweakTown Rating: 97%Manufacturer: Samsung

Iometer - Maximum IOPS

 

 

Version and / or Patch Used: Iometer 2014

 

We use Iometer to measure high queue depth performance. (No Partition)

 

Max IOPS Read

 

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Max IOPS Write

 

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The numbers we are getting here match exactly what we saw from our Anvil's IOPS testing. This indicates that the 860 EVO does not slow down at all when data is on the drive, which is a notable accomplishment for any TLC SSD.

 

 

Iometer - Disk Response

 

 

Version and / or Patch Used: Iometer 2014

 

We use Iometer to measure disk response times. Disk response times are measured at an industry accepted standard of 4K QD1 for both write and read. Each test runs twice for 30 seconds consecutively, with a 5-second ramp-up before each test. We partition the drive/array as a secondary device for this testing.

 

Avg. Write Response

 

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Avg. Read Response

 

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This testing bypasses any SLC buffer that may be on the drive which is why 860 EVO isn't delivering the goods like it does when reading data that is residing on its Intelligent TurboWrite layer.

 

 

DiskBench - Directory Copy

 

Version and / or Patch Used: 2.6.2.0

 

We use DiskBench to time a 28.6GB block (9,882 files in 1,247 folders) composed primarily of incompressible sequential and random data as it's transferred from our DC P3700 PCIe NVME SSD to our test drive. We then read from a 6GB zip file that's part of our 28.6GB data block to determine the test drive's read transfer rate. Our system is restarted prior to the read test to clear any cached data, ensuring an accurate test result.

 

Write Transfer Rate

 

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Read Transfer Rate

 

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When testing write transfer rates we have a rule of thumb. If any SSD cannot achieve 200MB/s with our write transfer test, that SSD will not receive a TweakTown recommendation. There are many TLC SSDs that do not pass our minimum, but we didn't include those on our chart.

 

Additionally, we recently updated to Windows 10 Anniversary Edition and with that update, sustained write performance greatly increased. This means our previous transfer tests cannot be compared with those run on the newer version on Windows 10. This is the reason we have drive's that differ from the rest of the review on this chart.

 

The 860 EVO ties with the 860 Pro for the best-read transfer rate for any SATA SSD we've tested to date. The drives on our chart that are powered by Micron and SanDisk 3D flash deliver better write transfer rates than the 860 EVO.

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