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Corsair Neutron NX500 400GB & 800GB NVMe PCIe SSD Review

By: Jon Coulter | PCIe in Storage | Posted: Aug 10, 2017 12:59 pm
TweakTown Rating: 91%Manufacturer: Corsair

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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We test NVMe SSDs using eight threads at QD32, or QD256. We do this because we want to see what the drive can generate at its maximum attainable queue depth. Both capacity points are able to exceed Corsairs stated maximum 4K random performance.

 

 

 

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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Comparing disk response of the NX500 to the BPX shows us the performance decline in low queue depth performance between E7 drives running on 2.1 and those running on 4.x firmware. We have been told that the reduction in SLC cache capacity increases reliability.

 

 

DiskBench – Transfer Rate

 

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 Toshiba RD400 1TB 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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We recently upgraded our test system to Windows 10 build 14393. With that upgrade, write transfer rates almost doubled. The reason for this, as far as we know, is that CPU power switching modes have been relaxed on the latest version of Windows 10. We included the NVMe drives we've tested to date on this build of Windows 10. If you needed a good reason to upgrade to a newer version of Windows 10; this is a good reason.

 

The NX500 doesn't deliver the absolute best transfer rates, but they are still what we would consider tier one performance. If we compare the transfer rates of the NX500 to those of the value oriented BPX, we see the NX500 performs significantly better.

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