Crystal Disk Benchmark is used to measure read and write performance through sampling of random data which is, for the most part, incompressible. The left screen capture shows results for testing with “zero-fill” (compressible) data, while the right screen capture shows results for random data.
Crystal Disk Mark shows us strong read and write results for both the “zero-fill” and for the “random” test runs, with both achieving over 500MB/s reads. Random results are less than 5% lower than the zero-fill results, showing excellent consistency for a value-oriented drive. One area where SSDs put HDDs to shame is the random 4K results. Many spinning-platter HDDs cannot even achieve 1MB/s read speeds, while the Slim S80 hits 53MB/s (zero-fill) and 24MB/s (random) read speeds. The 4K write speeds are very consistent at 65MB/s (zero-fill) and 62MB/s (random).
The toughest benchmark available for solid-state drives is AS SSD, as it relies solely on incompressible data samples when testing performance. AS SSD test results are often considered to be “worst case scenario” for data transfer speeds. Many enthusiasts not only wish to see what the best performance they can attain with their SSD is, but also what is the bottom level of performance that they can expect. Transfer speeds are shown in MB/s in the left screen capture, and IOPS are shown in the right screen capture.
The Slim S80 is able to achieve over 500MB/s (515) read speeds, and 450MB/s write speeds. 4K-64 thread IOPS come in at 40,000 for reads, and over 58,000 for writes. The total AS SSD score of 687 is acceptable, especially when considering the S80’s price point.
In the AS SSD copy-bench test, the S80 is fastest when downloading an ISO image, and slowest for program files.
ANVIL STORAGE UTILITIES PROFESSIONAL
Anvil’s Storage Utilities (ASU) is the most complete set of tests available for the solid state drive today. The benchmark displays not only throughput test results, but also for IOPS and disk access times. Not only does Anvil Storage Utilities incorporate a preset SSD benchmark, but also includes the ability to perform endurance testing and threaded I/O read/write/mixed tests. All of these are simple to understand and use.
Anvil shows remarkably similar total results for both read and write, with both around 2200 points. The sequential read speeds of 516MB/s and write speeds of 459MB/s are very similar to the AS SSD results. We do see better IOPS performance with this drive using Anvil, with reads topping out at a little over 50,000; and writes topping out at over 68,000. The total score of 4413 is middle-of-the-pack as compared to all drives, but is again quite good for a value-priced SSD.
Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems. It was originally developed by the Intel Corporation, however they discontinued work on the program. In 2003 it was re-launched by an international group of individuals who are now continuously improving, porting and extending the product that is now widely used within the industry.