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WD40E31X 14

WD Blue (WD40E31X) 4TB PC SSHD Review

  1. Introduction
  2. Test Setup and Methodology
  3. AS SSD and ATTO Benchmark
  4. ATTO Benchmark
  5. Futuremark Benchmark
  6. AIDA64 Disk Access Test
  7. Sequential Data Performance Test
  8. Random Data Performance Test
  9. Transfer Tests
  10. Conclusion
  11. Online Purchase Links
  12. View All


The system that I am using is to test most of the hardware. The same operating system, choice of SATA III port (SATA_1), version of the benchmark software and the testing method is maintained throughout the graph.

Operating System Windows 10 64-bit Pro
Processor+ Cooler Intel i7 4790k + Noctua NH-U12S
Motherboard Gigabyte Z97X-Gaming GT
RAM 8GB Kingston DDR3 HyperX
Primary Storage 240GB SanDisk Extreme II SSD
Secondary Storage 3TB WD Red WD30EFRX
Power Supply Corsair TX750
PC Case Lian Li A70F

The testing methods are as follows:

AS SSD and ATTO Benchmark

Futuremark Storage Benchmarks: PCMark 7 and PCMark 8

AIDA64 Average Read/Write Access Tests: 64KB Block Size

Sequential Data Performance Test (4K Aligned and 512 KiB)

Random Data Performance Test (4k Aligned and 256 KiB)

Transfer Test

My test bench and testing method has changed. For those who need a reference, you can check out the last PC HDD review done on the older test setup.

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