ATTO Disk Benchmark is a bit more comprehensive and includes tests with predefined block sizes. This is useful for measuring performance across both small and large files and can produce more fine-tuned results. On the other hand, Iometer is also another comprehensive disk benchmark utility and allows users to stress random I/O performance in real-time using random 4KB files.

For this test, we ran the default 256MB transfer size benchmark from 512 bytes to 64MB.

Based on ATTO results, the OCZ Trion 150 480GB shows remarkably consistent transfer rates between 64KB and 64MB and is perhaps one of the more consistent drives we have seen thus far. The drive maxes out at 563MB/s read speeds and 536MB/s write speeds, both above OCZ’s rated product specs, and these results are very consistent with the ones we have seen from our colleagues.