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Samsung 845DC PRO 800GB Enterprise SSD Review

By: Paul Alcorn | SSDs in IT/Datacenter | Posted: Oct 20, 2014 9:02 pm
TweakTown Rating: 96%Manufacturer: Samsung

Final Thoughts




Our original look at the 400GB Samsung 845DC PRO left us extremely impressed. Class-leading performance married with robust endurance, and the lowest power consumption in the SATA SSD market, makes for a class-leading SSD. The 845DC PRO series offers ten DWPD (Drive Writes per Day) of endurance, and increasing the capacity point also increases the amount of overall TBW (Terabytes Written) capability. The 800GB 845DC PRO offers a hefty dose of endurance that can address the most intense workloads.


Low power consumption is one of the most impressive characteristics of the revolutionary 2-bit V-NAND employed in the 845DC PRO series. All SSDs provide much lower power consumption metrics than their HDD counterparts, but there are differences between competing SSDs as well. The difference between typical planar-NAND SSDs can be small, but the new 3D V-NAND widens that gap considerably. In our power testing, the 800GB 845DC PRO only required a miniscule power increase for double the capacity, as low as .13 watts in our 4k random write testing. Both 845DC PRO SSDs have the same components, with slightly more DRAM and double the NAND packages on the 800GB model. The small increase in power consumption really illustrates the power-sipping nature of 3D V-NAND.


High performance paired with low power consumption also led to convincing wins in our IOPS-per-watt testing. The 845DC PRO manages to produce more work across the board with less power than the competing models. Future models with more capacity will only extend the IOPS-per-watt and watts-per-GB advantage for 3D V-NAND powered SSDs.


Another benefit of increased capacity lies in increased random write performance. It is surprising the 800GB 845DC PRO is only listed with a 1,000 IOPS advantage in 4k random write performance over its smaller 400GB counterpart. In our testing, we measured a much higher increase of nearly 3,000 IOPS in a sustained 4k random write workload. The 800GB managed to best its counterpart, and easily led the remainder of the test pool. The impressive performance was also paired with a nice, tight performance envelope, highlighting the solid performance consistency of the 845DC PRO series.


The robust random write performance also carried over to our mixed random write workloads, where the 800GB led the test pool by a large margin, and slid by the 400GB model. Random read performance also topped the charts, which has come to be an expectation from the MDX controller.


Sequential read and write performance was on par with the 400GB model, and led the remainder of the test pool. We uncovered yet another performance advantage for the high capacity model in our mixed sequential testing. The 800GB 45DC PRO led the test pool by a large margin, and continued to exhibit excellent power consumption during sequential testing. In our server workload testing, the 845DC PRO series continued to hold the lead against the competition, and in the email server workload, the 845DC PRO continued to display its impressive performance in heavy write workloads.


The 800GB 845DC PRO extends more capacity and performance to the end-user, and with robust endurance metrics, low power consumption, leading performance, comprehensive data protection features, and a five-year warranty, the 800GB 845DC PRO affirms our decision to award the series with the TweakTown Editor's Choice Award for the high endurance SATA segment.



PRICING: You can find the Samsung 845DC PRO Enterprise SSD for sale below. The prices listed are valid at the time of writing, but can change at any time. Click the link to see the very latest pricing for the best deal.


United States: The 800GB 845DC PRO retails for $1,485.54 at Amazon, and the 400GB 845DC PRO retails for $752.45 at Amazon.


Canada: The 800GB 845DC PRO retails for CDN$1,970.09 at Amazon Canada.

Product Summary Breakdown

TweakTown award
Quality, Design, Build and Warranty96%
General Features93%
Performance Consistency95%
Power Consumption and Efficiency97%
Overall TweakTown Rating96%

The Bottom Line: Samsung's 800GB 845DC PRO enterprise SSD provides more capacity and performance to the end-user with robust endurance metrics, low power consumption, leading performance, comprehensive data protection features, and a five-year warranty.

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