Samsung 850 Pro 1TB SSD Review

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Samsung 850 Pro – Performance For 10 Years:

Samsung SSDs have been extremely popular which is mostly due to their excellent performance but it doesn’t hurt that they’ve marketed pretty aggressively. Their 840 series, including the EVO and PRO versions, sold very well and were looked upon favorably by many of the review sites including this one. As such, we were excited to get our hands on the new 850 PRO drive (See the press release) to see what Samsung has done to improve upon the 840. There are several items of note but we’ll start with the NAND.  Samsung has made some advancements in the flash memory used with a new proprietary 32 layer 3D vertical NAND (V-NAND) technology. It allows for up to two times the density and higher performance than traditional 20nm NAND with the added bonus of increased endurance.

Samsung 850 Pro 1TB

The second big change is the warranty. Most drives carry a three or even five year warranty but Samsung has really made a statement with a fantastic 10-year warranty (though our pre-release product box still states 5-year). Most users will probably switch out drives before this warranty expires and no one else offers anything close. While the 850 PRO carries the same MEX ARM-based controller we saw with the 840 EVO they’ve made some firmware tweaks and added support for super low power draw while in device sleep (DEVSLP) mode – a measly 2mW. Performance tops out at 550MB/s reads and 520MB/s writes with IOPS hitting the 100K mark in reads and 90K in writes. Many of these performance specifications have improved over the 840 PRO.

Samsung 850 Pro Box

Samsung 850 PRO SSD Series Features and Specifications:

  • Usage Application: Client PCs
  • Capacity: 128GB, 256GB, 512GB, 1TB
  • Dimensions: 100 x 69.85 x 6.8 (mm)
  • Interface: SATA 6Gb/s (backwards compatible with SATA 3Gb/s & SATA 1.5Gb/s)
  • Form Factor: 2.5″
  • Controller: Samsung 3-core MEX Controller
  • NAND Flash Memory: Samsung 32 layer 3D V-NAND
  • DRAM Cache Memory: 256MB (128GB), 512MB (256GB & 512GB), 1GB (1TB) LPDDR2
  • TRIM Support: Yes (with OS Support)
  • Garbage Collection: Yes
  • S.M.A.R.T.: Yes
  • Data Security: AES 256-bit Full Disk Encryption (FDE) & TCG/Opal V2.0, Encrypted Drive (IEEE1667)
  • Weight: Max 66g (1TB)
  • Terabytes Written: 150TBW
  • Power Consumption:
    • Active Read (avg): Max 3.3W (1TB)
    • Active Write (avg): Max 3.0W (1TB)
    • Idle: Max 0.4W
    • Dev Sleep: 2mW
  • Temperature:
    • Operating: 0C to 70C
    • Non-Operating: -40C to 85C
  • Humidity: 5% to 95% non-condensing
  • Warranty: 10 Years limited
SAMSUNG 850 PRO
MZ-7KE128BW MZ-7KE256BW MZ-7KE512BW MZ-7KE1T0BW
MSRP: $129.99 $229.99 $429.99 $729.99
Performance: 128GB 256GB 512GB 1TB
Sequential (MB/s) Read: 550 550 550 550
Write: 470 520 520 520
Random IOPS (4KB QD1) Read: 10,000 10,000 10,000 10,000
Write: 36,000 36,000 36,000 36,000
Random IOPS (4KB QD32) Read: 100,000 100,000 100,000 100,000
Write: 90,000 90,000 90,000 90,000

*Orange values indicate improved performance over the Samsung 840 PRO

Samsung includes a warranty booklet and installation guide, along with a few small stickers.

Samsung Magician Rapid Mode

The Samsung Magician software (we are using a beta version 4.4) is also a fantastic companion tool for their drives. You can see all kinds of information about the drive and its health along with performance various functions like benchmarks, secure easing, optimizing the OS and customizing the amount of over provisioning. Performance can also be boosted with the enabling of RAPID mode which leverages unused system RAM to cache data. We saw this with the 840 drives and it works great.

Samsung Magician Encryption

The Magician tool can also be used to enable drive encryption and shows the various levels of encryption supported by Samsung’s current drives.

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  • cw823

    Because of the new 32-layer 3D V-NAND cell structure, the chips are higher in density and therefore less are required

    Actually this should be “fewer” rather than “less”

  • Vectrexer

    Sorry buds, but my Patriot Torqx 256GB SSDs have a 10 year warranty.

    That purchase was made way back in 2009. So a 10 year warranty on an SSD is nothing new under the sun. And the Patriot warranty on my drives do not have any hidden agenda on data write limits. So its a true blue 10 year warranty.

    The drives are still working well today. Maybe not as fast as some of the new SSDs. But still plenty fast, and still faster than any hard drive out there.

  • John P. Myers

    Samsung has updated their MSRP listings:

    128GB – $129.99 USD ($1.02/GB)
    256GB – $199.99 USD ($0.78/GB)
    512GB – $399.99 USD ($0.78/GB)
    1TB – $699.99 USD ($0.68/GB)

  • basroil

    That thing has a monster longevity thanks to 3d circuits, but really should have been released with a PCIe version to make use of the improved internals. With SATA limitations, the 840EVO might be a better bet, since you can get the 500GB one for a bit more than the 850PRO (with sales, I can buy one here for $230), and according to the tests here it’s not that much slower