Benchmark: ATTO
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Samsung 840 EVO 120GB (RAPID disabled) |
Samsung 840 EVO 120GB (RAPID enabled) |
We're into new territory here, folks. First things first, let's forget about RAPID Mode for a moment and appreciate the 840 EVO's standard performance. Courtesy of TurboWrite, a sequential write speed of over 415MB/s is very healthy indeed; and remember, the drive doesn't use on-the-fly compression as per the SandForce competitors, so these speeds should be achievable with all data types.
Sequential read and write performance is excellent for a 120GB drive, but turn on RAPID Mode and things get really interesting. What's actually happening in our default ATTO benchmark is that the small 256MB dataset is being entirely cached, resulting in system DRAM being tested as opposed to the SSD. ATTO also limits displayed results to 4GB/s, so the truncated bars seen in the RAPID Mode screengrab at the top of the page reflect DRAM performance exceeding what ATTO is able to show.
To get a better idea of what RAPID Mode can do, ATTO can be configured to use 1GB and 2GB datasets. Once again, performance can be spectacular:
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ATTO - 1GB RAPID Mode Transfer Rate |
ATTO - 2GB RAPID Mode Transfer Rate |
