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The SanDisk Disk Drive comes formatted as exFAT so in order to run some of our benchmarks we re-formatted the drive as NTFS.
CrystalDiskMark is a useful benchmark to measure the theoretical performance levels of hard drives and SSDs. We are using V8.
The ATTO Disk Benchmark performance measurement tool is compatible with Microsoft Windows. Measure your storage system performance with various transfer sizes and test lengths for reads and writes. Several options are available to customize your performance measurement including queue depth, overlapped I/O and even a comparison mode with the option to run continuously. Use ATTO Disk Benchmark to test any manufacturer's RAID controllers, storage controllers, host adapters, hard drives and SSD drives and notice that ATTO products will consistently provide the highest level of performance to your storage.
AS SSD is a great free tool designed just for benching Solid State Drives. It performs an array of sequential read-and-write tests, as well as random read-and-write tests with sequential access times over a portion of the drive. AS SSD includes a sub suite of benchmarks with various file pattern algorithms but this is difficult in trying to judge accurate performance figures.
SanDisk quote read transfer speeds of up to 1,000MB/s for the Disk Drive but we couldn't find an official write figure on the spec sheet for the drive. Using the ATTO and AS SSD benchmarks the drive came up a little shy of the official read maximum with test results of 966MB/s and 955MB/s respectively. The best write figure saw for ATTO was 963MB/s while the best AS SSD figure was 956MB/s. Switching over to the CrystalDiskMark 8 benchmark the drive gave up a best-read score of 1,015MB/s (default and 0 fill tests) so confirming the official figure. The best write figure we saw was 1,012MB/s (four out of the six Sequential tests).
The fastest 4K performance came when using the Peak Performance profile (QD32 1 Thread) in CrystalDiskMark 8. The best-read figure we saw from testing the drive was 397.31MB/s with writes at 373.25MB/s. Using the more like real-life Real Word profile we saw a best read / write figures of 40.62MB/s and 80.01MB/s respectively.
