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: We didn’t get quite the same performance out of the OCZ Vector 180 SSD via the Inateck dock across the USB interface as we did with a direct SATA III interface but the numbers aren’t too far off and certainly faster than you’ll get from any hard drive from any interface.
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, not quite the same performance on USB as SATA III especially in QD32 4K performance where the performance gap was tremendous. However, only enterprise type (i.e. server) applications hit this queue depth and other.