Review: Samsung's new 3D NAND SSD for 'Pros' is a superfast drive at a good price
This SSD knows how to shut down, and it can do it in under 4 seconds
Computerworld - Samsung today announced its first Pro series SSD based on 3D vertical NAND (V-NAND) technology.
Designed for workstations and high-end PCs, the new Samsung 850 Pro solid-state drive, unveiled at the 2014 Samsung SSD Global Summit in Seoul, South Korea, represents a marked improvement over the company's first V-NAND SSD, a model for enterprise servers and data centers that was released last August.
The Pro 850 is also faster than the company's previous 840 Pro series SSD, which was based on typical planar (2D) NAND.
As with all new SSDs, the Samsung 850 Pro uses the SATA III (6Gbps) interface. The drive also offers a dynamic thermal guard feature, which maintains ambient temperature while operating and prevents potential data loss from overheating.
Samsung said its proprietary
The 850 Pro is the first 32-layer 3D V-NAND product for client PCs. Samsung's previous 3D V-NAND SSD used 24 layers of data-storing silicon.
"The 3D V-NAND will drive disruptive innovation that can be compared to a digital Big Bang in the global IT industry and [will] contribute to much more significant growth in the memory market," Samsung executive vice president E.S. Jung said in a statement.
What V-NAND allows Samsung to do is cram more capacity into a smaller space and thereby reduce its manufacturing costs. The consumer isn't likely to see major boosts in capacity from 3D NAND for some time, because the current focus in the industry is driving down costs and boosting profits.
As with its previous Pro-series SSDs, Samsung uses a proprietary controller called MEX, which is based on three ARM Cortex-R4 cores that run at 400 MHz.
Samsung claims its V-NAND flash has more than twice the endurance of conventional planar NAND flash -- up to 2 million hours mean time between failures (MTBF). Samsung's V-NAND technology is built to handle a 40GB daily workload, which equates to 150TB written to it over ten years. Because of that, the new 850 Pro SSD comes with a 10-year limited warranty, something that's unprecedented with Samsung SSDs.
The drive also comes natively with AES 256-bit full disk encryption capability.
The Samsung 850 Pro is available in 128GB ($130), 256GB ($230), 512GB ($430) and 1TB ($730) storage capacities.
I conducted benchmark tests of the Samsung 850 Pro using an Apple MacBook Pro running OS X Mountain Lion (v. 10.8.4) with 8GB of RAM and a 2.5GHz Intel Core i5 processor. The computer has a SATA 3.0, 6Gbps internal drive interface to match the SSD.
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