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Samsung 840 EVO 750GB SSD Review (Page 5)

Chris Ramseyer | Jul 25, 2013 at 11:15 am CDT - 1 min, 43 secs reading time for this page
Rating: 95%Manufacturer: Samsung

HD Tune Pro

Version and / or Patch Used: 4.00

Developer Homepage: http://www.efdsoftware.com

Product Homepage: http://www.hdtune.com

HD Tune is a Hard Disk utility which has the following functions:

Benchmark: measures the performance

Info: shows detailed information

Health: checks the health status by using SMART

Error Scan: scans the surface for errors

Temperature display

HD Tune Pro gives us accurate read, write and access time results and for the last couple of years has gained popularity amongst reviewers. It is now considered a must have application for storage device testing.

Samsung 840 EVO 750GB SSD Review 53 | TweakTown.com

If you've read the other articles published today, then you already know a bit about RAPID Mode. We're including the RAPID Mode benchmarks in the charts, but some of the charts look a little off since RAPID uses system RAM as a 1GB cache for the SSD.

Reading sequential data from the drive at full span does use RAPID as you can see in this chart. The 840 EVO 750GB does a really good job though without the external cache.

Samsung 840 EVO 750GB SSD Review 54 | TweakTown.com

We see a small bump from RAPID for the first 750MB, but then the drive settles down to regular 840 EVO speeds. The EVO writes data quite a bit faster than the original 840. The 750GB model has a minimum sequential write speed of just over 405MB/s in this test.

HD Tach - Sequential Write Performance after Random Writes

Samsung 840 EVO 750GB SSD Review 55 | TweakTown.com

In this format we can actually see the cache layers and how long they last for while writing the span of the drive. On the far left we see RAPID for a short period of time, then TurboWrite and finally the TLC flash. The spikes should be from either RAPID or TurboWrite cache flushing and then capturing more data. The read performance varies between 290MB/s and just under 500MB/s. At the end of this test with 128KB data, the read performance drops to just over 100MB/s. Normally we look at write performance in this test and see the write dip that low.

Last updated: Apr 7, 2020 at 12:31 pm CDT

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ABOUT THE AUTHOR - Chris Ramseyer

Chris Ramseyer started his career as a LAN Party organizer in Midwest USA. After working with several computer companies he was asked to join the team at The Adrenaline Vault by fellow Midwest LAN Party legend Sean Aikins. After a series of shake ups at AVault, Chris eventually took over as Editor-in-Chief before leaving to start Real World Entertainment. Look for Chris to bring his unique methods of testing Hard Disk Drives, Solid State Drives as well as RAID controller and NAS boxes to TweakTown as he looks to provide an accurate test bed to make your purchasing decisions easier.

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