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ADATA XPG SX8200 240GB & 480GB M.2 NVMe PCIe SSD Review (Page 7)

By Jon Coulter from May 29, 2018 @ 10:00 CDT
TweakTown Rating: 99%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

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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. We have no problem exceeding factory max random IOPS specs.

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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More lab records for TLC-based SSDs are served up by the SX8200. The SX8200 delivers by-far the best random read response at QD1 for a TLC-based SSD. Where it really matters, is where the SX8200 really delivers. This is another demonstration of why we like IMFT 64-layer flash so much.

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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Here again, we see that ADATA's recipe is a bit better than Intel's. The 480GB SX8200 delivers more than double the sustained write performance of the 760P. Intel's 760P employs a fixed SLC buffer capacity. ADATA's SX8200 employs a dynamic SLC buffer that can expand its capacity into unused space. This is why the SX8200's write transfer rate is more than double the 760P.

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