TweakTown
Tech content trusted by users in North America and around the world
5,917 Reviews & Articles | 38,121 News Posts

Samsung 840 Pro 256GB SSD Review - Benchmarks - Sequential Performance

Samsung 840 Pro 256GB SSD Review

In the enthusiast SSD market two products stand taller than the rest - the OCZ Vector and Samsung's 840 Pro. Today we're looking at the 256GB capacity size. Two drives enter, one drive leaves the champion.

| SSDs in Storage | Posted: Feb 14, 2013 7:56 am
TweakTown Rating: 94%      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.

 

 

TweakTown image content/5/1/5197_52_samsung_840_pro_256gb_ssd_review.png

 

Both the 840 and 840 Pro do very well when reading sequential data at QD1. Vector limits QD1 reads to around 350MB/s, but when the commands are stacked, the performance increases to around 500MB/s. The 840 and 840 Pro also increase performance when the queue depth is increased. We'll see higher NCQ writes in the CrystalDiskMark tests later in this review.

 

TweakTown image content/5/1/5197_53_samsung_840_pro_256gb_ssd_review.png

 

Here we see one of the large differences between the base 840 and the 840 Pro - write performance. The 840 Pro with MLC NAND writes much faster than the 840 with TLC. In this test using 64K size data, Vector enters 'storage mode' and slows halfway through the test. The low minimum speed isn't something you'll hit under normal use, but it does show up in our testing.

 

HD Tach - Sequential Write Performance After Random Writes

 

TweakTown image content/5/1/5197_54_samsung_840_pro_256gb_ssd_review.png

 

The Samsung 840 Pro still writes sequential data at an average speed of 395MB/s after being hit with a large amount of random writes. This is much better than the 840 Pro 128GB and 840 250GB.

Related Tags

Further Reading: Read and find more Storage content at our Storage reviews, guides and articles index page.

Do you get our RSS feed? Get It!

Post a Comment about this content

Latest Tech News Posts

View More News Posts

TweakTown Web Poll

Question: Facebook's acquisition of Oculus VR will...

Improve Oculus Rift Development

Hamper Oculus Rift Development

Completely destroy Oculus Rift Development

Let's wait and see, I'm not sure

or View the Results

View More Polls

Forum Activity

View More Forum Posts

Press Releases

View More Press Releases