Samsung 850 PRO 1TB SSD Review

A closer look at the Samsung 850 Pro hardware.

PCB

Samsung 850 PRO 1TB SSD Review
PCB top side

The top side of the PCB contains the Samsung MEX SSD
controller, four Samsung 3D V-NAND chip packages, a cache chip, and a few
support components.

Samsung 850 PRO 1TB SSD Review
PCB underside

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The underside of the PCB hosts another four 3D V-NAND chip
packages, and a few more support components.

The SSD controller

Samsung 850 PRO 1TB SSD Review

The SSD controller is labelled as S4LN045X01-8030, or better
known as the Samsung MEX. The MEX boasts 3 cores, and is clocked at around 400MHz.

The NAND

Samsung 850 PRO 1TB SSD Review

The NAND is Samsung’s own 3D V-NAND MLC, and for more
details see the top of the first page of this article. There are 8 NAND chip
packages onboard the 1TB version of the Samsung 850 Pro, meaning each chip can
store 128GB of data.

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Cache

Samsung 850 PRO 1TB SSD Review

Samsung uses its own LPDDR2 cache chip package. With 256MB
on the 128GB version, 512MB on the 256GB and 512GB versions, and 1GB of cache
on the 1TB version.

DATA encryption and protection

The Samsung 850 Pro series is a self encryption based
solution, which is compliant with TCG-OPAL 2.0.

Drive maintenance features

For Windows 7 and Windows 8 users, and some distributions of
Linux, the Samsung 850 Pro series SSD supports ATA TRIM to keep the NAND clean.
The Samsung 850 Pro series also has advanced garbage collection to clean the
NAND during drive idle periods.

Samsung 850 PRO 1TB SSD Review
Samsung SSD Magician

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The SSD Magician software allows the user to maintain the
SSD, and has the following features.

The version that reviewers were provided with was a new beta
version 4.4, which provides support for the 850 Pro SSD, and also updates RAPID
mode, to allow up to 4GB of system RAM to be used as data cache on systems with
16GB or more of RAM.

  • Disk drive: Brings up useful information about the
    SSD, including its health status and how much data has been written to the
    SSD.
  • System info: Allows the user to see system and
    drive properties.
  • Performance Benchmark: Performs a very basic
    benchmark on the SSD.
  • Performance optimization: Performs a manual TRIM of
    the SSD.
  • OS Optimization: Allows operating system features
    that can affect SSD performance, to be switched on or off.
  • Firmware Update: Allows the Samsung 840 EVO
    firmware to be updated.
  • Secure Erase: Sends a Secure Erase command to the
    SSD, clearing all NAND and returning the SSD back to its default factory
    state.
  • Over Provisioning: Allows the user to set aside a
    given amount of NAND as a manual over provisioning area.
  • SSD authenticity test: Checks to make sure
    that the SSD is a genuine Samsung SSD.
  • Enable Rapid mode: Enables the NVELO ‘Rapid’ cache
    feature.

 

Specifications

Samsung 850 PRO 1TB SSD Review

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Let’s head to the next page where we take a look at our
testing methods and the review PC….

 

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