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Optane SSD as RAM

SnowKat
By SnowKat
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Ram and optane do completely different things, they wont replace each other.

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No, it is not fast enough, especially the consumber grade optane. If it ever does get used for memory, it would be a slower and cheaper alternative to ram

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8 minutes ago, SnowKat said:

Will the wait be long for Optane SSD's or the like to eliminate the need for RAM?

Snowkat

they are not the same. ram is here to stay. 

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1 minute ago, SnowKat said:

Optane SSD not the Optane DRAM bridge... good ol'Intel naming conventions...

https://www.theverge.com/circuitbreaker/2017/10/31/16582018/intel-optane-p900-ssd-fast-dram-nand-flash-memory-desktop-computer

SnowKat

you'd still need ram.

think of it as an add-on. not a replacement.

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1 minute ago, SnowKat said:

At R/W speeds of 2000MB/s - 2500MB/s there becomes a point where RAM is an extra un-required step.

ram is around 25GB/s though

intel does have a plan to use optane as a ram extender but it wont replace it, and that will probably be server only

 

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1 minute ago, SnowKat said:

Was hoping my next build was going to be a huge GPU, Mobo and super fast SSD with no need for RAM....

SnowKat

There's too much between the SSD and CPU for that to work. Plus, while SSDs nowdays are extremely fast for sequential read/writes, they still can't come close to RAM in terms of small, random access (hence the name, RAM), which is what is most important for the vast majority of the functions performed by RAM. 

 

It's not all about peak bandwidth, a lot of it is down to response and speed, which SSDs just can't match. 

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23 minutes ago, SnowKat said:

At R/W speeds of 2000MB/s - 2500MB/s there becomes a point where RAM is an extra un-required step.

Ram is still way faster, has lower latency, and higher random numbers.

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It should be noted that the Xpoint ram use case is not for direct performance, but indirectly by providing better cost per capacity than dram.

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