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Samsung 750 EVO 500GB SATA III SSD Review

By: Jon Coulter | SSDs in Storage | Posted: Jun 8, 2016 3:15 am
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

 

samsung-750-evo-500gb-sata-iii-ssd-review_35

 

Max IOPS Write

 

samsung-750-evo-500gb-sata-iii-ssd-review_36

 

 

samsung-750-evo-500gb-sata-iii-ssd-review_37

 

With our configuration, we are able to match Samsung's maximum random read specification of 98,000 IOPS. We are unable to achieve Samsung's 88,000 IOPS maximum write specification. We got close but, didn't quite get there.

 

 

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

 

samsung-750-evo-500gb-sata-iii-ssd-review_38

 

Avg. Read Response

 

samsung-750-evo-500gb-sata-iii-ssd-review_39

 

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The 500GB 750 EVO delivers the best read response of the drives in our test pool. The 850 EVO delivers the best write response. We have noticed throughout our testing that the 500GB 750 EVO has improved 4K QD1 read performance in comparison to the 250GB 750 EVO.

 

 

DiskBench – Transfer Testing

 

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

 

samsung-750-evo-500gb-sata-iii-ssd-review_41

 

Read Transfer Rate

 

samsung-750-evo-500gb-sata-iii-ssd-review_42

 

samsung-750-evo-500gb-sata-iii-ssd-review_43

 

The 500GB 750 EVO sets the bar for planar TLC drives when writing a large block of data. We consider the write portion of this test to be one of the most important considerations when evaluating planar-based TLC SSDs. The 850 EVO wins this test due to the fact that its flash array is comprised of 3D flash. The CS2211 employs an MLC flash array and therefore is able to best the 500GB 750 EVO. Capacity strikes again allowing the 500GB 750 EVO to handily outperform it's smaller sibling. The 500GB 750 EVO handily outperforms the X400 and TRION 150 when writing data.

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