AMD's RX 7000 series Navi 31 CPUs are ready for a 3D V-Cache upgrade

3D packaging could soon come to Radeon

AMD's RX 7000 series Navi 31 CPUs are ready for a 3D V-Cache upgrade

AMD has laid the groundwork for future GPUs with 3D stacked memory cache dies

AMD's "Navi 31" RDNA 3 graphics cards are incredibly innovative, and while their Radeon RX 7900 XTX has failed to surpass Nvidia's RTX 4090, AMD has managed to introduce many key design enhancements that could allow AMD to surpass Nvidia in the future. One of these design tweaks is AMD's successful chiplet-based design approach, and the second is hidden within their memory cache dies. 

Tom Wassick has analysed AMD's Navi 31 Infinity Cache Dies and has confirmed that they feature "spots" that are useful for 3D chip stacking. This is the technique that AMD has used to add 3D V-Cache to their Ryzen 5000 X3D and Ryzen 7000 X3D processors, suggesting that AMD has plans to add 3D V-Cache to their memory cache dies. In theory, AMD could release a Radeon 7000 series GPU with 3D V-Cache on their memory cache dies, increasing their available Infinity Cache to boost memory performance.

While AMD's obvious use for this 3D stacking functionality is the addition of more Infinity Cache, it is possible that AMD could put 3D stacking to another use, though at this time we have no idea what this use could be. 

AMD's RX 7000 series Navi 31 CPUs are ready for a 3D V-Cache upgrade

Currently, it is unknown when AMD plans to utilise 3D chip stacking with their Radeon graphics cards. AMD could utilise 3D chip stacking with future RX 7000 series GPUs, or wait for the release of their future RX 8000 series before utilising this feature. Either way, AMD has plans to release more complex GPUs in the future, and 3D stacking could take their Infinity Cache technology to the next level. 

You can join the discussion on AMD's Radeon RX 7000 series GPU silicon being ready for 3D V-Cache on the OC3D Forums.

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Most Recent Comments

30-01-2023, 13:41:27

NeverBackDown
Would be interesting to see if they add cache for the whole die which is what they currently do or if they end up sectioning off caches for certain tasks to ensure everything has a shortest possible pathway for loading/unloading data.Quote

30-01-2023, 14:18:15

Gothmoth
i don´t need more speed from AMD.
i need better compatibility and support for my applications.


even a 15% faster card for the same price would not make me buy an AMD GPU.Quote

30-01-2023, 15:11:01

NeverBackDown
Quote:
Originally Posted by Gothmoth View Post
i don´t need more speed from AMD.
i need better compatibility and support for my applications.


even a 15% faster card for the same price would not make me buy an AMD GPU.
AMD has released all the open source tools to allow developers to take advantage of AMD hardware. If developers don't want to invest into updating their pipelines there's very little AMD can do without bribing everyone, but then they'd be competing with Nvidia's pockets and Nvidia can go much deeper than AMD.Quote

30-01-2023, 17:37:36

Gothmoth
that is maybe all right and good.



but AMD puts a lot of effort into supporting game development.
i don´t see them do the same when it comes to applications.


it´s one thing to have tools availabe, another to have actual help from engineers.
nvidia seems to be way ahead when it comes to supporting software companys.Quote

04-02-2023, 23:21:22

g0ggles1994
RTG's problem from what I can tell is the sheer funding disparity between them and AMD's CPU division. Granted Nvidia is utterly stomping them into the ground at the moment but the only way they can get back on their feet is more funding, primarily in the app support/driver department.

Having cutting edge hardware is one thing, having the resources to back it up and support it in a timely manner is another.Quote
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