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NoelC

System Testing and Benchmarks

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I'm so sorry but I'm not impressed. In the real world it will be tough to notice any difference between these two:

 

l2qH0rZZ.png

 

The MX100 however is just ~$450/TB against ~$730/TB for the 850 Pro, and comes with a troop of safety tantalum caps.

 

crucial-mx100-256gb-ssd-custom-pc-review

 

And SATA III does cap the seq speeds, but not the 4K random (thus far). Notice the 4K random QD1 writing speeds well above 100 MB/s.

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Those 4K writing speeds are simply bogus because they're cached by RAM in the system.  You need to research how Intel RST works.

 

-Noel

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If you don't like the term "bogus", call them "skewed" then.  I do actually know what I'm talking about.

 

-Noel

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Allow me resurrecting this thread to comment on this recently uncovered issue.

 

Anandtech - Samsung Acknowledges the SSD 840 EVO Read Performance Bug

 

Samsung 840 / 840 EVO susceptible to flash read speed degradation over time

 

 

900x900px-LL-4985de76_2014-09-1720.18.26

 

^ x-axis is weeks since file was last written, y-axis is seq read speed in MB/s. Notice how read speed drops as time passes by.

 

Only the plain 840 and the 840 EVO seem to be affected (not the 840 Pro, nor other brands of SSD).

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