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Kingston SSDNow UV400 480GB SATA III SSD Review

By: Jon Coulter | SSDs in Storage | Posted: Nov 18, 2016 6:48 pm
TweakTown Rating: 89%Manufacturer: Kingston

Iometer – Maximum IOPS

 

Version and / or Patch Used: Iometer 2014

 

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

 

Max IOPS Read

 

kingston-ssdnow-uv400-480gb-sata-iii-ssd-review_35

 

Max IOPS Write

 

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The UV400 outperforms its factory specs considerably. Looking at write IOPS, we are getting 35K more IOPS than specified by Kingston. This leads us to believe that Kingston is giving us the specs for a preconditioned SSD.

 

This is admirable on their part. However, other manufacturers typically do not give maximum IOPS specifications on a preconditioned drive. Kingston may be selling themselves a bit short in this regard.

 

 

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

 

kingston-ssdnow-uv400-480gb-sata-iii-ssd-review_38

 

Avg. Read Response

 

kingston-ssdnow-uv400-480gb-sata-iii-ssd-review_39

 

kingston-ssdnow-uv400-480gb-sata-iii-ssd-review_40

 

The UV400 does quite well with this testing. It delivers the second-best read response and the second-best write response. Overall, this is a win for the UV400.

 

 

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

 

Windows 10

 

kingston-ssdnow-uv400-480gb-sata-iii-ssd-review_41

 

Server 2008

 

kingston-ssdnow-uv400-480gb-sata-iii-ssd-review_42

 

Read Transfer Rate

 

Windows 10

 

kingston-ssdnow-uv400-480gb-sata-iii-ssd-review_43

 

Server 2008

 

kingston-ssdnow-uv400-480gb-sata-iii-ssd-review_44

 

kingston-ssdnow-uv400-480gb-sata-iii-ssd-review_45

 

When testing write transfer rates, we have a rule of thumb. If any SSD cannot achieve 200 MB/s with our write transfer test, that SSD will not receive a TweakTown recommendation. Quite a few SSDs have not been able to pass our litmus test. The UV400 did not deliver us our 200 MB/s minimum. This had us scratching our heads, mainly because other Marvell 88SS1074 controlled SSDs we've tested have all passed with flying colors.

 

Because of this, we decided to see what would happen when we ran this test on Server 2008 as part of our MOP testing. Much to our surprise, the UV400 delivered a sustained write transfer rate of 393 MB/s. We are at a loss as to why the UV400 delivers a 2.5x better write transfer rate on Server 2008, but because it does so, we will not disqualify the UV400 from receiving a TweakTown recommendation based on our 200 MB/s rule of thumb.

    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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