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View Full Version : Samsung EVO and NVMe drives announced...



Zaxx
07-18-2013, 02:49 PM
This may change the way we think about TLC nand. They overclocked the controller by 33 percent and are using 'slc' mode as a buffer which allows fast writes even with smaller drives...the 128GB Evo hits 410MB/s writes!


http://i43.tinypic.com/dh36fd.jpg


Initial story with more numbers and pricing at Anand (http://www.anandtech.com/show/7150/samsung-launch-the-840-evo-up-to-1tb-and-faster-writes-for-120gb).

The whole story at Anand (http://www.anandtech.com/show/7152/new-elements-to-samsung-ssds-the-mex-controller-turbo-write-and-nvme).

Looks like the first NVMe (SFF-8639) drives are ready to hit the stage...

'For the uninitiated, NVM Express (Non-Volatile Memory Express) is an optimized, high performance, scalable host controller interface with a streamlined register interface and command set designed for enterprise and client systems that use PCIe-based SSDs. Because the PCIe bus is faster than SATA, drives connected via the former can push data at extremely fast speeds.'

'Enter the NVMe SSD XS1715. Samsung said this drive provides a sequential read speed at a crazy 3,000 MB/s, which allows it to process 500 GB of data in less than 3 minutes. Random read performance reaches up to 740,000 IOPS, which is more than 10 times as fast as existing high-end SSD storage options, the company said.'

More detail re: NVMe at Tom's (http://www.tomsitpro.com/articles/nvm-express-xs1715-enterprise-pcie-ssd-global-summit,1-1145.html).

Edit: And it seems I was right about the use of PCI-E adapter cards to fill the role until native sata express/NVMe support gets here.

From the last paragraph where a crowd question about NVMe was answered by Samsung:

"On the second question about a PCIe -> SSD connector, it makes sense that one will be released in due course until chipset manufacturers implement the connectors for SSDs using the PCIe interface. It should not be much of a leap, given that SATA to USB 3.0 connectors are already shipped in some SSD packages."

The adapter will be the easy part, it's the second mortgage it might take to afford a new Samsung XS1715 NVMe enterprise drive. Real curious as to how the larger 800GB and 1.6TB models are put together...a pair of 2.5" pcbs raided? Given the thickness (about the same as a hard drive) could be 3 or 4 pcbs!?!

Kain665
07-23-2013, 10:52 AM
Probably multiple PCBs for NAND. Performance looks like a certain 32 channel controller...