ATTO Disk Benchmark
The ATTO Disk Benchmark program is free, and offers a comprehensive set of test variables to work with. In terms of disk performance, it measures interface transfer rates at various intervals for a user-specified length and then reports read and write speeds for these spot-tests. There are some minor improvements made to the 2.46 version of the program that allow for test lengths up to 2GB, but all of our benchmarks are conducted with 256MB total length. ATTO Disk Benchmark requires that an active partition be set on the drive being tested. Please consider the results displayed by this benchmark to be basic bandwidth speed performance indicators.
240GB SX930 SSD ATTO Benchmark Results
The 240GB model provided to Benchmark Reviews for testing produced 557 MBps maximum read speeds that plateau when the file size reaches about 512KB, and 464 MBps peak write bandwidth that plateaus starting at 64KB. These numbers pretty much match ADATA’s claim of 560 MB/s sequential reads and 460 MB/s sequential writes.
As you can see from the chart above, most of the SSDs that Benchmark reviews has tested in the last couple of years have similar maximum sequential read speeds. The SX930’s sequential write speed is a little off the pace, but not egregiously so.
In the next section, Benchmark Reviews tests sequential performance using the CrystalDiskMark 3.0 software tool…