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.
1TB Samsung 950 PRO Array ATTO Benchmark Results
Most drive produce a chart like this on the ATTO test: read and write speeds that ramp and plateau. You have to read the number in the “Read” and “Write” columns to appreciate what you’re seeing here. Wait, maybe a graph would be better:
You’ll recall that the real-world bandwidth ceiling of a SATA 6 connection is about 560 megabytes per second. Our 950 PRO array blows through this with a peak read speed of 3.3 gigabytes per second– over six times faster– and a peak write speed of just over 3 gigabytes per second.
In the next section, Benchmark Reviews tests sequential performance using the CrystalDiskMark 3.0 software tool…