128K Sequential Read/Write
The 128K sequential speeds reflect the maximum sequential throughput of the SSD using a realistic file size actually encountered in an enterprise scenario.
The SM843 performs very well with pure sequential workloads, scoring an average of 527MB/s at QD256. This tremendous read speed actually matches the SAS-powered Optimus. The Micron averaged 413MB/s in sequential reads at QD256, the Intel DC S3700 473MB/s, and the Optimus 526MB/s.
The SM846 averages an impressive 487MB/s in sequential write speed at QD256. The Micron P400m averages 318MB/s, the DC S3700 444MB/s, and the Optimus weighs in at 514MB/s.
The SM843 performs very well at both ends of the extreme. With pure sequential read and write workloads the MDX controller provides a clear advantage. Adding in mixed workloads does lead to a slump in performance.
The SM843 delivers excellent latency with a 128K sequential write workload, delivering 100% of I/O in the 60-80ms range. The SM843 really comes into its own with sequential workloads.
The SM843 averages 3.65 Watts at a QD256 sequential write workload, the Micron P400m 5.57 Watts, the Intel 2.39 Watts, and the Optimus 7.37 Watts.
The SM843 provides 133 MB/s write IOPS per Watt, the P400M 57MB/s IOPS, the DC S3700 185MB/s and the Optimus 69MB/s.
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