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Samsung 840 SSD Storage Endurance Testing - TLC to the End - Specifications, Pricing and Test System

Samsung 840 SSD Storage Endurance Testing - TLC to the End

Today we start on an adventure. Despite reviewer's claims, Samsung has never stated the endurance life of its new TLC NAND flash used in the new 840 SSD. We're going to find out just how many program erase cycles the flash can take... in time.

| Editorials in Storage | Posted: Feb 12, 2013 6:12 am
Manufacturer: Samsung

Specifications, Pricing and Availability

 

TweakTown image content/5/1/5196_03_samsung_840_ssd_storage_endurance_testing_tlc_to_the_end.png

 

Samsung released the 840 in three capacity sizes - 120GB, 250GB and 500GB. The drives all contain the standard amount of flash inside (128GB, 256GB and 512GB respectively), but some of the NAND is reserved for wear leveling, background tasks and spare area.

 

SSD's spread the data around and control the data location on the flash. When we fill the drive for the first time, we write 250GB of data. The second full write will also fill 250GB, but 6GB is written to new NAND not used in the first write.

 

As you can see, or in this case not see in the specifications above, Samsung does not list endurance or program erase cycles on the list.

 

TweakTown image content/5/1/5196_04_samsung_840_ssd_storage_endurance_testing_tlc_to_the_end.png

 

After looking around the office we found a nice collection of parts to get started. The Samsung 840 was taken out of the package, updated to the latest firmware and then we began testing right away, as you saw in the video on the first page of this article.

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