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ADATA SP550 SATA III (120GB, 240GB & 480GB) SSD Review

By: Jon Coulter | SSDs in Storage | Posted: Nov 12, 2015 3:07 pm
TweakTown Rating: 71%Manufacturer: ADATA

Iometer - Maximum IOPS

 

Version and / or Patch Used: Iometer 2014

 

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

 

Max IOPS Read

 

adata-sp550-sata-iii-120gb-240gb-480gb-ssd-review_35

 

 

Max IOPS Write

 

adata-sp550-sata-iii-120gb-240gb-480gb-ssd-review_36

 

adata-sp550-sata-iii-120gb-240gb-480gb-ssd-review_37

 

We're not sure what is going on with the 480GB SP550. The 480GB model would logically have the best read performance of the series, but it's by far the worst of the bunch. The 480GB model is reading below specification. And the 240GB model is writing below specification. Only the 120GB model can meet and exceed its given max IOPS specifications.

 

 

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

 

adata-sp550-sata-iii-120gb-240gb-480gb-ssd-review_38

 

Avg. Read Response

 

adata-sp550-sata-iii-120gb-240gb-480gb-ssd-review_39

 

adata-sp550-sata-iii-120gb-240gb-480gb-ssd-review_40

 

The 480GB SP550 delivers very good write response. The SP550 at all capacity points deliver below average read response times.

 

 

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 drives read transfer rate. Our system is restarted before the read test to clear any cached data, ensuring an accurate test result.

 

Write Transfer Rate

 

adata-sp550-sata-iii-120gb-240gb-480gb-ssd-review_41

 

Read Transfer Rate

 

adata-sp550-sata-iii-120gb-240gb-480gb-ssd-review_42

 

adata-sp550-sata-iii-120gb-240gb-480gb-ssd-review_43

 

This test best exposes non-Samsung TLC flash based drives. Sustained writes bring the all the TLC drives in our test pool to their knees. If you are going to transfer large chunks of data on a regular basis, then the SP550 and all other non-Samsung TLC drives we've tested are not for you.

    We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.

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