ATTO Disk Benchmark is a relatively easy-to-use benchmark tool, which happens to be the benchmark of choice for many manufacturers. ATTO uses compressible data rather than random data, which results in higher performance and thus, higher benchmark scores. In our testing, we have selected the transfer size to range from 0.5KB to 8192KB, and have set the total length of the test to be 256MB.
Throughout, we will see virtually identical result from both the 4 and 8TB capacities of the Novachips Scalar HLNAND SSDs, however, what we really need to be watching is the performance. Unlike ever before in a published independent review, this performance was attained through a single controller solution and requiring no more power than any other SSD to do so. In fact, continuous transfer speed progression as sample data size increases is a sign of a very solid SSD, not to mention great SATA 3 performance.
Crystal Disk Benchmark is visually straightforward, and is used for measuring the speeds at which your storage device reads and writes in both compressible (oFill/1Fill) and random, mostly incompressible, data. Random data is more consistent with everyday use of a computer, such as transferring videos, pictures and music. We run the benchmark twice, using oFill data first, and then proceeding to test with random data. Since results typically return with nearly identical scores, we only include the results for random data samples.
You might notice that the 4TB result on the left was achieved with highly compressible (oFill) data while that of the 8TB capacity on the right uses in compressible data. The truth is that, regardless of sample date type, performance was very consistent and that of a superior SATA 3 SSD.
AS SSD Benchmark uses incompressible data in their testing of SSDs, essentially providing results that would be consistent with using the heaviest workload, thus lower speeds are expected.
Specifications list IOPS of up to 80K, whereas these are somewhat lower. In speaking to Novachips, they explained that this is the result of an early firmware release and that they assured that they would not only reach the 80K mark, but exceed it with the new update.