Crystal Disk Benchmark is used to measure read and write performance through sampling of random data which is, for the most part, incompressible. Performance is virtually identical, regardless of data sample so we have included only that using random data samples. Further, we are using the newest release of CDM where the queue depth, and even thread count, can be set. Take a look what doubling threads and increasing the QD to 512 does on the right. Amazing speed!
The toughest benchmark available for solid state drives is AS SSD as it relies solely on incompressible data samples when testing performance. For the most part, AS SSD tests can be considered the ‘worst case scenario’ in obtaining data transfer speeds and many enthusiasts like AS SSD for their needs. Transfer speeds are displayed on the left with IOPS results on the right.
We were more than happy to see that the Samsung SM951 RAID stood up to one of the toughest benchmarks available today, but more importantly, check out those IOPS at 315K read and 148K write. That is something special. Better yet, look at the data transfer speeds in this Copy Benchmark:
Transfer speeds such as seen here are seldom seen in our testing and never seen in typical consumer report. An actual disk transfer speed confirmation of 2.1GB/s is nothing to scoff at.
ANVIL STORAGE UTILITIES PROFESSIONAL
Anvil’s Storage Utilities (ASU) are the most complete test bed available for the solid state drive today. The benchmark displays test results for, not only throughput but also, IOPS and Disk Access Times. Not only does it have a preset SSD benchmark, but also, it has included such things as endurance testing and threaded I/O read, write and mixed tests, all of which are very simple to understand and use in our benchmark testing.
Although speeds are a bit lower in Anvil and with respect to both throughput and IOPS, it is a great utility to get a look at access speeds, and the overall picture.
The SSD Review uses benchmark software called PCMark Vantage x64 HDD Suite to create testing scenarios that might be used in the typical user experience. There are eight tests in all and the tests performed record the speed of data movement in MB/s to which they are then given a numerical score after all of the tests are complete. The simulations are as follows:
- Windows Defender In Use
- Streaming Data from storage in games such as Alan Wake which allows for massive worlds and riveting non-stop action
- Importing digital photos into Windows Photo Gallery
- Starting the Vista Operating System
- Home Video editing with Movie Maker which can be very time consuming
- Media Center which can handle video recording, time shifting and streaming from Windows media center to an extender such as Xbox
- Cataloging a music library
- Starting applications
PCMARK VANTAGE RESULTS
The PCMark Total Score of the Samsung SM951 RAID0 combination is 145340 with a high transfer speed of 1.4GB/s while working in Windows Media Center. Looking closely, we see that 5 of the 8 tests resulted in data transfer speeds over 900MB/s.