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Samsung 840 EVO 250GB SSD Review - Benchmarks - CrystalDiskMark

By: Chris Ramseyer | SSDs in Storage | Posted: Jul 25, 2013 12:44 pm
TweakTown Rating: 95%Manufacturer: Samsung



Version and / or Patch Used: 3.0 Technical Preview

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CrystalDiskMark is a disk benchmark software that allows us to benchmark 4K and 4K queue depths with accuracy.


Key Features:-


* Sequential reads/writes

* Random 4KB/512KB reads/writes

* Text copy

* Change dialog design

* internationalization (i18n)


Note: Crystal Disk Mark 3.0 Technical Preview was used for these tests since it offers the ability to measure native command queuing at 4 and 32.




Here we see the 4K read IOPS at QD1 through a different lens, MB/s. On its own, without RAPID, the 840 EVO does really well - again outperforming the 840 PRO. When you enable RAPID, the QD1 performance doubles. In the video we published from the 2013 Samsung Global SSD Summit, Samsung displayed the 840 EVO achieving just over 100MB/s in this test. That was with a 1TB capacity size drive. We'll publish the 750GB model review later today, and you can see what the large drives can really do.




When we run CDM, we use the 1000 MB setting, the largest available. That means we're never getting past the DRAM and SLC layer cache. If we run the test again the performance only increases since the data is already cached.

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