WD Black NVMe SSD Review: Affordable With Great Write Speeds
WD Black NVMe SSD: SANDRA And ATTO Benchmarks
Next we ran SiSoft SANDRA 2017, the the System ANalyzer, Diagnostic and Reporting Assistant. Here, we used the Physical Disk test suite and provide the results from our comparison SSDs. The benchmarks were run on clean drives that lacked any partions. Read and write performance metrics are detailed below.
Once again, we see the WD Black NVMe SSD put up competitive read speeds, but with class-leading writes.
ATTO is another "quick and dirty" type of disk benchmark that measures transfer speeds across a specific volume length. It measures raw transfer rates for both reads and writes and graphs them out in an easily interpreted chart. We chose .5KB through 64MB transfer sizes and a queue depth of 6 over a total max volume length of 256MB. ATTO's workloads are sequential in nature and measure raw bandwidth, rather than I/O response time, access latency, etc.
With the smallest transfer sizes (about 16K and below), the WD Black NVMe SSD lags behind the rest of the pack slightly, but as transfer sizes increase, it puts up competitive reads speeds (once again) and the best write scores of the bunch.