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Thread: Intel Optane SSD 905P Series (480GB)

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    Re: Intel Optane SSD 905P Series (480GB)

    Quote Originally Posted by scaryjim View Post
    Almost certainly 0.1 microseconds. I have no idea what the Unicode point for a greek letter mu is though! I'd normally fudge it with a u.

    EDIT: and I note that the article's actually been updated already... *doh*
    I thought that was about a magnitude too slow for typical time to first word. Maybe once the request has been routed over a ringbus and bounced off the caches though...

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    Re: Intel Optane SSD 905P Series (480GB)

    Too expensive for me....but if I needed it perhaps a good buy. But I think I'd be more interested in a RAID solution if it works out better on the cost per gb solution and isn't going to be that slow
    Old puter - still good enuff till I save some pennies!

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    Re: Intel Optane SSD 905P Series (480GB)

    Odd that they need an extra power connector, m.2 SSDs manage fine on what the socket provides. Of course, that probably explains the chunky die-cast heatsink - that's a lot of cooling for an SSD. For a 55C temp difference (25C ambient, 80C heatsink) a bare 2.5" drive shaped cuboid should dissipate ~9W, so with the ribs and pins it should handle the 12.4W nominal max sustained draw without needing an air con unit. Of course, that power into ~100g of aluminium would take well over an hour* to get it all up to temp so it should be rare for a workload to get the heatsink fully warmed up

    *assuming externally adiabatic and lumped heat capacity it'll take 82.5 mins to increase by 55C, so in practice this would be much much longer

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    Not a good person scaryjim's Avatar
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    Re: Intel Optane SSD 905P Series (480GB)

    Quote Originally Posted by DanceswithUnix View Post
    I thought that was about a magnitude too slow for typical time to first word. Maybe once the request has been routed over a ringbus and bounced off the caches though...
    memory latency benchmarks seem to give mid-50s ns for Intel and mid 70s ns for Ryzen, so I think talking about 0.1 microseconds is fair in terms of relative magnitude (when you're saying under 10ms for Optane latency). It still leaves Optane 2 orders of magnitude slower than RAM and only 1 order of magnitude faster than NAND flash, which IMNSHO leaves it firmly in the storage bracket of latency - needs another order of magnitude improvement before it's closer to RAM than storage...

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    Re: Intel Optane SSD 905P Series (480GB)

    ... I thought Optane would get a competitor through QuantX, but haven't heard thing since the QuantX announcement. I wonder what happened with that?

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    Re: Intel Optane SSD 905P Series (480GB)

    Quote Originally Posted by Dizyab View Post
    ... I thought Optane would get a competitor through QuantX, but haven't heard thing since the QuantX announcement. I wonder what happened with that?
    Its being released next year,and both companies developed the tech together,so it makes me wonder whether Intel will release something newer next year.


    Those despicable Elk,stealing the pond weed!

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    Re: Intel Optane SSD 905P Series (480GB)

    Quote Originally Posted by DanceswithUnix View Post
    Compared to five NAND SSDs of the same capacity though, which you could put in a raid 0 or 5 stripe giving you way more capacity and a crazy aggregate IOPs figure?
    Well there is that option, or you could just get a 500GB Samsung 970 Evo M.2 drive for an OS drive, saving yourself £350 for some additional storage. Such as 3 additional Samsung 500GB 860 Evo drives for that Raid 5 with pretty decent storage capacity and IOPS. You're still saving money this way as well.

    I can see why Micron isn't shipping much XPoint to Intel, the pricing is stupid for essentially minimal gains.

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    Re: Intel Optane SSD 905P Series (480GB)

    Quote Originally Posted by DanceswithUnix View Post
    Compared to five NAND SSDs of the same capacity though, which you could put in a raid 0 or 5 stripe giving you way more capacity and a crazy aggregate IOPs figure?
    Depends what performance characteristic you were after. If IOPS then sure, if latency though then this is cheaper than RAM.

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    Re: Intel Optane SSD 905P Series (480GB)

    over priced junk.

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