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Nvidia to use GDDR5X memory with next generation GPUs

Nvidia to use GDDR5X memory with next generation GPUs

Nvidia to use GDDR5X memory with next generation GPUs

Nvidia to use GDDR5X memory with next generation GPUs

 

It is now rumored that Nvidia will be using GDDR5X memory with some of their upcoming Pascal GPUs, offering double the speeds of current GDDR5 memory. 

From what we know about GDDR5X memory we know that it has a very similar memory architecture to currently available GDDR5, with the main change being that the memory has double the pre-fetch from 8 data words per memory access to 16 data words per data access, in theory giving the memory double the theoretical bandwidth while maintaining an architecture that is nigh identical to GDDR5.

  Nvidia to use GDDR5X memory with next generation GPUs

(Image from Toms Hardware)

 

Micron designed GDDR5X and has approached JEDEC to make GDDR5X a memory standard, so that this memory can be adopted into the industry more widely. So far in the first generation of this memory Micron has increased the memory data rates of GDDR5 from 8Gbps to between 10-12Gbps with GDDR5X, with future iterations hoping to surpass 14Gbps mark or even reach its theoretical maximum of 16Gbps.  

Micron expects GDDR5X to be able to hit the market in the second half of 2016, just in time for a new generation of GPUs. With supply of HBM and HBM 2.0 memory being very constrained it is likely that some next generation GPUs will need to run on GDDR5 memory, though with the availability of GDDR5X GPUs can still use GDDR memory and not have as large of a bandwidth disadvantage when compared to HBM. 

When compared to GDDR5X, HBM and HBM 2.0 still has significant advantages, as it consumes less power, reduces the required PCB space for a GPU and HBM 2 offers a significantly higher amount of bandwidth than GDDR5X.

 

You can join the discussion on GDDR5X memory on the OC3D Forums

 

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Most Recent Comments

13-10-2015, 06:43:11

Valeriant
Must be because of cost and yields of using HBM2. Perhaps HBM2 would be for the higher end cards.Quote

13-10-2015, 06:44:01

TheF34RChannel
Did I miss something? I've read that micron created it, but found no link to Nvidia whatsoever?Quote

13-10-2015, 06:56:49

WYP
Quote:
Originally Posted by The F34R Channel View Post
Did I miss something? I've read that micron created it, but found no link to Nvidia whatsoever?
The rumor is that Nvidia will be using it, apart from that no information is really available, so i explained exactly what the memory was.

GDDR5X is significantly less complex to move to than HBM as it is so similar to GDDR5, making it a great option for them to use until HBM can be manufactured in required quantities and all manufacturing issues for placing it on GPUs are resolved.Quote

13-10-2015, 08:33:01

TheF34RChannel
Quote:
Originally Posted by WYP View Post
The rumor is that Nvidia will be using it, apart from that no information is really available, so i explained exactly what the memory was.

GDDR5X is significantly less complex to move to than HBM as it is so similar to GDDR5, making it a great option for them to use until HBM can be manufactured in required quantities and all manufacturing issues for placing it on GPUs are resolved.
Ah makes sense, cheers I heard this 'rumour' but was nothing more than someone saying it in a forum post, and such posts more than once started to leads its own life Quote

13-10-2015, 09:08:39

AlienALX
So much for the pics with the die showing HBM.

I guess they couldn't get the license for it. Ah well, not going to lose any sleep over it.Quote
Reply
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