Samsung 950 pro series

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Samsung SSD 950 Pro Specifications và Features

Samsung is lớn offer two versions of the 950 PRO initially, the 256GB and 512GB models. The largest M.2 kích cỡ currently is 512GB (otherwise the PCB would get too long and they would need lớn divert lớn a larger size factor). So the sample that have arrived in our test lab is the 256GB M.2 version of the drive.The 950 Pro series will come with MLC NAND flash memory from Samsung"s 2nd revision V-NAND node.

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So what is V-NAND?

V-NAND is physical vertical NAND cell stacking not khổng lồ be confused with cpu stacking in a multi-chip package. In V-NAND, NAND layers, not chips, are stacked in a single IC. The good news is continued cost reduction, smaller die sizes và more capacity per NAND chip. Also, installed NAND toolsets in the wafer fabs can, for the most part, be reused, thereby extending the useful life of fab equipment. Current V-NAND stacks have 32 cell layers vertically over one another, rather than decreasing cell dimensions lớn fit onto a fixed horizontal space, resulting in higher density & better performance with a smaller footprint. With the M.2 form factor SSDs, more consumers with desktops or ultra-thin PCs can benefit from best-in-class performance and reliability of thetechnology.

So what is NVMe?

NVMe is also known as Non-Volatile Memory Express or the Non-Volatile Memory Host Controller Interface Specification. The idea behind NVMe is lớn improve the storage stack by optimizing the way an application accesses a Flash device. NVMe cuts corners by removing components within the I/O path lượt thích that good old fashioned RAID controller. To lớn be able khổng lồ make use of the new NVMe based devices inside your PC you have to lớn have a proper driver installed, this can be downloaded at the Samsung website. This enables NVMe devices to lớn function within the existing operating system I/O stack protocol.

On the next page we"ll talk a little more about NVMe.

Let"s have a quick peek at the key specifications:

950 Pro 512GB950 Pro 256GBSM951-NVMe 512GB (OEM)850 Pro 512GB
Form FactorM.2 22802.5" SATA
ControllerSamsung UBXSamsung MEX
InterfacePCIe 3.0 x4SATA III
ProtocolNVMeAHCI
DRAM512MB512MB512MB
NANDSamsung V-NAND 32-layer 128Gbit MLCSamsung 16nm 64Gbit MLCSamsung V-NAND 32-layer 86Gbit MLC
Sequential Read2,500MB/s2,200MB/s2,150MB/s550MB/s
Sequential Write1500MB/s900MB/s1,550MB/s520MB/s
4KB Random Read (QD32)300K IOPS270K IOPS300K IOPS100K IOPS
4KB Random Write (QD32)110K IOPS85K IOPS100K IOPS90K IOPS
Power7.0W (burst) 5.7W (average) 1.7W (idle)6.4W (burst) 5.1 (average) 1.7W (idle)8.9W (peak)3.3W (read) 3.0W (write) 0.4W (idle)
EncryptionAES-256, TCG Opal 2.0N/AAES-256, TCG Opal 2.0
Endurance400TB200TBN/A300TB
Warranty5 YearN/A10 Year
Launch DateOctober 2015Summer 2015Summer 2014

Yeah, if that doesn"t impress you I don"t know what will. As you can see, the 950 PRO is a direct derivative from the OEM version of theSM951. There are differences though in NAND type used và power consumption, but overall... It"s more of the same being tweaked. The reason you have seen so fewSM951 reviewed is that this product was released for OEM only, và thus the units ended up in pre-fabricated laptops & PCs, not in retail.

I just pulled some numbers from some online etailers. Making your own SSD with your own controller, own PCB, own cache chips và own NAND flash memory does have advantages as Samsung is able to lớn keep the prices very competitive as this sản phẩm is made 99% in-house.

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256 GB costs 199 EUR / 199 USD512 GB costs 369 EUR / 349 USD
These are street prices incl. VAT for the M.2 units. Not bad, especially when you consider that this is a mainstream class SSD that offers enthusiast class SSD performance (as you are about lớn find out from our benchmarks).

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The Samsung 950 PRO M.2


IntroductionSpecifications & FeaturesWhat"s SATA | NVMe | NAND TypesProduct ShowcaseInstallation & RecommendationsSSD Operating TemperaturesTest Environment & EquipmentSSD Performance Long Duration Degradation Consistency testSSD Performance file Copy TestsSSD Performance Atto Disk BenchmarkSSD Performance 64-bit Trace TestingSSD Performance Crystal DiskMarkSSD Performance HD Tune PROSSD Performance IometerSSD Performance AS SSD BenchmarkSSD Performance HD TachSSD Performance SiSoft Sandra HDDSSD Performance Anvil"s Storage UtilitiesFinal Words và Conclusion
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