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Samsung 850 Pro 128GB SSD Review

By: Chris Ramseyer | SSDs in Storage | Posted: Jul 1, 2014 3:00 am
TweakTown Rating: 90%Manufacturer: Samsung

HD Tune PRO - Sequential Performance


Version and / or Patch Used: 4.55




There are several very good SSDs in the 128GB capacity size but most are older models with 64Gbit die. Many of the new 128GB size drives use 128Gbit die and their performance is slower than older SSDs since the larger die do not use the same amount of interleaving. The ADATA SP920 128GB is a good example of a modern SSD using 128Gbit die and the Crucial M550 128GB is the exact same SSD but with 64Gbit die. In the charts today, you can see how the die density changes performance in the 128GB capacity size. That is if you can look past the Samsung 850 Pro 128GB outperforming everything else.




Like I said, it's difficult to see past the explosive performance of the 850 Pro 128GB. The write performance is higher than anything else we've seen in this capacity size. The 850 Pro is also Samsung's first attempt at tackling performance consistency; it looks like they nailed it right from the start.



HD Tach - Sequential Write Performance after Random Writes


Version and / or Patch Used:




I have to wonder if Samsung intentionally sent us the 128GB model. We've been the only media outlet to say anything negative about Samsung SSDs in the past. The criticism always came from the 128GB capacity sizes drives.


The 830, 840, 840 Pro and 840 EVO 128GB models all lost a significant amount of write performance after random writes to the drive. Samsung's new V-NAND flash addresses the issue and as you can see here, not only does the performance stay very close to 400 MB/s, it's also one of the fastest SSDs in this test.

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