CrystalDiskMark is a file transfer and operational bandwidth benchmark tool from Crystal Dew World that offers performance transfer speed results using sequential, 512KB random, and 4KB random samples. For our test results below, the default 4KB 32-Queue Depth read and write performance was measured using a 1GB file size.
Benchmark Reviews utilizes CrystalDiskMark to illustrate operational IOPS performance with multiple work threads. In addition to our other tests, this benchmark allows us to determine operational bandwidth under heavy load. CrystalDiskMark uses compressed data, so sequential file transfer speeds are reported lower than with other tools using uncompressed data.
CrystalDiskMarkTests: Intel X99 Platform
Using a NTFS-formatted 512GB Samsung SSD 950 PRO, CrystalDiskMark utilized 32-queries working on 1-thread to produce 2600 MB/s sequential read speeds for both the X99 and Z170 test systems. Q32T1 Sequential write speeds were also very similar, achieving 1547 MB/s on X99 and 1540 for Z170.
Random 4K transfer using 32-queries and 1-thread delivered 525 MB/s read and 392 MB/s write performance for X99, while Z170 produced much higher speeds with 777 MB/s reads and 426 MB/s writes.
CrystalDiskMarkTests: Intel Z170 Platform
Utilizing 1MB blocks for sequential single-thread transfers, 950 RPO delivered read speeds reaching 2158 MB/s with X99 and 1925 MB/s with the Z170 test system. Write speeds were very different between the two, with X99 producing 1033 MB/s while Z170 generated a remarkable 1536 MB/s.
Random 4KB IOPS performance utilizing a single queue and thread produced 49 MB/s reads from X99 and 42 MB/s on Z170, while write IOPS reached 223 MB/s with X99 and 179 MB/s on Z170.
In the next section, Benchmark Reviews tests transfer rates using ATTO Disk Benchmark.