PC STORAGE PERFORMANCE
The software we will be using for today’s analysis is typical of many of our reviews and consists of ATTO Disk Benchmark, Crystal DiskMark, AS SSD, Anvil Storage Utilities and PCMark Vantage. We rely on these as they each have a way of supporting one another yet, at the same time, adding a new performance benchmark to the total picture. Much of the software is free and can be downloaded simply by clicking on the linked title.
ATTO Disk Benchmark is perhaps one of the oldest benchmarks going and is definitely the main staple for manufacturer performance specifications. ATTO uses RAW or compressible data and, for our benchmarks, we use a set length of 256mb and test both the read and write performance of various transfer sizes ranging from 0.5 to 8192kb. Manufacturers prefer this method of testing as it deals with raw (compressible) data rather than random (includes incompressible data) which, although more realistic, results in lower performance results.
As much as performance of 824MB/s in a single form factor SSD has never been seen prior to this, take a close look at the performance of different file capacities, specifically 4K transfer speeds. These results are 1/3 the speed of what we are seeing in today’s solid state drives and SATA 3 transfer speeds don’t even transpire until 32kb file size.
Crystal Disk Benchmark is used to measure read and write performance through sampling of raw (0/1 Fill/compressible) or random data which is, for the most part, incompressible. In the Samsung NGFF PCIe SSD, performance results are very similar whether we test with compressible or incompressible data and, for this reason, results are displayed utilizing incompressible data.
Once again, very low 4K performance is seen in the write transfer speed and even the 4K-32 results are very low.
Up until recently, AS SSD was the only benchmark created specifically for SSD testing and it uses incompressible data. AS SSD, for the most part, gives us the ‘worst case scenario’ in SSD transfer speeds because of its use of incompressible data and many enthusiasts like to AS SSD for their needs. Once again, we will display the standard system on the left with optimized on the right.
Our 4K write results are very low, although the Total Score of 1069 is very impressive, as are the high 4K read IOPS of 118807 which just might be the highest we have seen from a single form factor SSD to date. The low 4K pattern we have been seeing now shows itself in the transfer of a program. This is one of the lowest speeds we have seen to date.
Remember this specific test as you checkout our first hand transfer speed testing in the summary of this report.