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Samsung 840 Pro 128GB SSD Review - Benchmarks - Sequential Performance

The most talked about SSD in 2012 finally makes an appearance. At this time there are two high-end drives fighting it out for the enthusiast performance crown, OCZ's Vector and the drive were looking at today, Samsung's 840 Pro.

By: | SSDs in Storage | Posted: Jan 8, 2013 8:23 am
TweakTown Rating: 92%Manufacturer: Samsung

HD Tune Pro


Version and / or Patch Used: 4.00

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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.





The Samsung 840 Pro reads sequentially across the drive at an average speed of 469MB/s. As you can see, we have the OCZ Vector and SuperSSpeed S301 SLC in the charts as well today. The Vector test is a bit misleading since it limits single reads to roughly 350MB/s so you have overhead to perform another task without slowing the first.




The 840 Pro writes sequential data to the drive on average at 363MB/s. OCZ plays some tricks here as well since Vector uses storage and performance modes when you write data to the drive rapidly.




In order to get a drive into a true consumer steady state when we get to the benchmarks later in this review we run a handful of tests to wear the test SSDs down. HD Tune Pro has six tests we run, the two tests shown above, the two IOPS tests and the Extras Tests in the software suite.


After the six HD Tune Pro tests are ran, we run HD Tach, an older program that uses a different block size than HD Tune Pro. This is what we saw in HD Tach, a worn down 840 Pro that is already running like a drive that's spent a few hours in a datacenter.

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