JMicron SSD Testing With A19, L85A & L85C Memory

ATTO DISK BENCHMARK VER. 2.47

ATTO Disk Benchmark is perhaps one of the oldest benchmarks going and is definitely the main staple for manufacturer performance specifications. ATTO uses RAW or compressible data and, for our benchmarks, we use a set length of 256mb and test both the read and write performance of various transfer sizes ranging from 0.5 to 8192kb. Manufacturers prefer this method of testing as it deals with raw (compressible) data rather than random (includes incompressible data) which, although more realistic, results in lower performance results.

TOSHIBA A19

JMicron 667H Toshiba A19 128GB SSD Prototype ATTO

IMFT L85A

JMicron 667H Intel L85A SSD Prototype ATTO

IMFT L85C

JMicron 667H Intel L85C SSD Prototype ATTO

While the Toshiba A19 and IMFT L85A are relatively similar, we see at significant drop in write performance with the IMFT L85C memory.  This might be something noteworthy to watch for as we use other benchmark software.

CRYSTAL DISK BENCHMARK VER. 3.0 X64

Crystal Disk Benchmark is used to measure read and write performance through sampling of highly compressible data (oFill/1Fill), or 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.

Crystal DiskMark Chart Detailed

Once again, we are seeing substandard write performance from the IMFT L85C memory, however, all three drives displayed great low 4K random write performance.

2 comments

  1. Jmicron has really come a long way. Their newer lineup is pretty decent. Lets just hope that their pci-e solutions come out good and that lots of partners use it.

    Although one thing will always be mind-boggling…. How the hell did JM602 ever came to market ? I mean, didn’t they validate it ?!

    • It was one of the first…everyone was amaze at this new technology. Before they could breath they had sales from most companies trying to get in on this new technology… It was literally an overnight thing.

      Qw forget that they weren’y alone . This just stuck with them because they had so many manufacturers who had purchased the controller.

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