ATTO is one of the oldest drive benchmarks still being used today and is still very relevant in the SSD world. ATTO measures transfers across a specific volume length. It measures raw transfer rates for both reads and writes and places the data into graphs that can be very easily interpreted. The test was run with the default runs of 0.5KB through 8192KB transfer sizes with the total length being 256MB.
Benchmark Results: Regardless of how many times the benchmark was run, the performance remained consistent. Since the benchmark relies on random data, there’s no way the controller can appropriately cache the data. So, results don’t show the boost of the SSD portion of the drives but rather the HDD speed. As far as the numbers go, both drives are pretty even in performance.
CrystalDiskMark is a small benchmark utility for drives and enables rapid measurement of sequential and random read/write speeds. Note that CDM only supports Native Command Queuing (NCQ) with a queue depth of 32 (as noted) for the last listed benchmark score. This can skew some results in favor of controllers that also do not support NCQ.
Benchmark Results: Again, this benchmark doesn’t show the boost of the SSD assist and does use incompressible data although it doesn’t seem to have too much of an impact on overall performance.