SATA 4, 12 Gb/s (SATAe 16 Gb/s) for SSD's?

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josejones

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I'm just curious if there's any idea when SATA 4, 12 Gbit/s (SATAe 16 Gbit/s) might be coming out, at least for Solid State Drives (SSD's) ?

I've seen no mention of it at all over at Serial ATA - maybe somebody could ask them? There's no mention of SATA 4 at Wiki either - Serial ATA.

Is SATA 4 even in the pipe? SSD's seem to be making some great strides so, it seemed like SATA 4 would be coming at some point.

Added edit: SSDs to get faster with SATA Express = 16Gb/s
 

josejones

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In a history of performance analysis, CPU's have increased 175x while Hard Drive performance only increased by 2x. (paraphrase from the video below)

VIDEO: Under the Hood: Transforming Storage with NVM Express
https://www.youtube.com/watch?v=Epn1U0mVoXQ

15 Years Of Hard Drive History: Capacities Outran Performance

"Processor performance has improved about 175-fold over the last 12 years, while the performance of traditional hard drives has barely increased at all. As a result, hardware and software vendors have been increasingly challenged to compensate for data access latencies in data-intensive application environments. "

http://www.intel.com/content/dam/ww...icles/ssd-total-cost-of-ownership-article.pdf

"If you look at PC and CPU performance over the last little over a decade, clearly CPUs have done stellar things in terms of increasing performance. If you look at single-core CPUs, definitely 65x the performance over 12 years and if you look at multicore CPUs then that’s almost 175x, On the other hand hard drives have been doing great in capacity, but performance really hasn’t improved in the storage subsystem. You know it’s about 1.3-1.5x increase in performance [in the past 13 years] so what this does is create this huge bottleneck for the PC and for the user"

http://blog.laptopmag.com/intel-product-manager-talks-ssds

http://www.flashmemorysummit.com/English/Collaterals/Proceedings/2009/20090812_Keynote6_Piednoel.pdf

http://web.stanford.edu/class/ee380/Abstracts/081112-Fazio-slides.pdf
 

yumri

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main thing to take into account though is that you will have to basically reprogram part of the BIOS if you want to go over to a NVM way of doing it as the BIOS is currently looking for a ACHI signature on the drives thus making it so either a SSD will have to be integrated in onto the system board for the OS(es) with the ACHI signature on it and/or the BIOS will have to change for NVM drives to be recognized making them incompatible for boot drives in older hard ware though. In that also the gains from a SSD to a RAM Drive are almost non-exsistent with PCIe 3.0 x8 SSDs marketed to Enterprises for Teir-0 applications which need those nanoseconds but anything on a consumer computer nanoseconds less load time will not be noticeable. Thus i do not think NVM is going to go anywhere soon unless the cost comes down alot compared to that of a regular SSD.
Don't get me wrong it is alot faster just it is so much faster that we consumers will not really notice the minimal gains it will provide
 

josejones

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Here's my own predicament ... what would you do?:

I need a new HD as my current HD is used as I pulled it out of an older system that was replaced a couple years ago: WD Blue 500g SATA3, 16mb cache

Should I just get a WD Black Series 2 TB SATA III or wait for a WD Hybrid SATA Express HD at 10 Gbps or wait until the dust settles from the price premium for these new next generation NVMe SSD's/M.2? Or, just settle for a SATA III/ AHCI 240/256 Samsung SSD without NVMe for now? I'm in quite a pickle but, mostly because I'm trying to save money or get what I really want. Won't prices come down on the soon to be obsolete SATA III/ AHCI disc HD's? Another issue is that my system is old enough that new SSD's may not be compatible.

My current system:

MB: MSI 790FX-GD70
CPU: AMD Phenom II X4 955
HD: WD Blue 500g SATA3, 16mb cache
EX.HD: WD Passport 1T
RAM: 8g Mushkin 1600
GPU: Evga 760 SC 2g
PSU: Seasonic X-750w

I hope to be able to do a new build after Intel's Skylake comes out and prices are decent on DDR4, SSD's/M.2 etc., most likely spring of 2016.
 

josejones

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I wish Tom's Hardware would check in with SSD makers and give us some accurate news on when we can expect to see some new NVMe SSD's and M.2's being made available to consumers.

Some Z97 and X99 motherboards already support NVMe - to what degree I'm not sure, but, I'm curious if the next generation of mobos and CPU's will be native or improved in some way?

The only place I know to look to keep an eye out is http://www.thessdreview.com
 

brucel86

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I don't think it's in the pipeline as PCIe speed blow SATA 6Gbps. PCIe runs 2GBps (not a typo)
 

chenw

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Not to mention that conventional mechanical HDD's have only recently just begun to saturate SATA 1's bandwidth (according to Seagate, their latest enterprise archival HDD is the fastest 6TB's in the world at 216MB/s transfer rate, that translates to 1728Mb/s, SATA 1 is 1.5Gb/s), and mechanical drive still remain the more dominant type of storage in an ordinary layman consumer's desktop computer. Even with Laptops becoming common with SSD's, SATA 3 is by and large fast enough that it would not benefit an average consumer that much to warrant a SATA 4.

I can see it being used for Raid setups and such, or when SSD's comedown in price so much that they offer at least close to HDDs in terms of GB/$.
 

elite09g8

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if you think about it, it's July and there still aren't any SSD's that are SATAe for sale... SSD PCIe is the future for desktops and id place serious cash on that, at least for the next couple years
 

yumri

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very high limit on connecter yes the thing is the NAND Flash device atm barely scraps 1.5GBps so a in a hypothetical max over 8x that is nice but if you cant get 8GBps then whats the use?
btw 1.5GBps is a lot faster then 6 Gbps
 

dude8561

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SATA uses 8b/10b encoding which is 10 bits per byte.