AMD’s flagship RDNA 3 GPU could not have an all-new design in spite of everything

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AMD’s next-gen flagship graphics card (Navi 31, presumably the RX 7900 XT) could not go for a multi-chip module (MCM) design sporting two separate GPUs as previously rumored, and will stick to a single GPU (as historically used) as an alternative.

Earlier than we go into this, we must always make it clear that the twin GPU rumor is simply that – hypothesis that Workforce Purple will construct the flagship round a pair of GCDs (graphics compute dies) – as is the likelihood that AMD would possibly stick with the present monolithic design it has all the time used for its Radeon client graphics cards.

With that firmly in thoughts, a number of sources, together with 3DCenter and RedGamingTech (as PC Gamer noticed, the YouTuber underlines that a number of distinguished Twitter leakers have joined in with this hypothesis), at the moment are arguing it may be the case that Navi 31 will run with simply the one GCD.

The idea is that AMD might use a configuration of 1 major GCD (5nm), hooked as much as six reminiscence chiplets (MCDs, constructed on 6nm), which might be a seven chiplet design.

RedGamingTech believes that we are going to see Navi 31 sporting 12,288 cores, and that it’ll run with 24GB of VRAM, greater than the 16GB quantity beforehand rumored (with a 384-bit reminiscence interface).


Evaluation: Two turns into one? Perhaps, or possibly not…

As PC Gamer suggests, it could be the case that AMD has not been in a position to understand the dream of getting two GPU chips working collectively seamlessly, in order that they’re solely seen as a single GPU by the system – avoiding the problems and issues which have traditionally plagued the likes of SLI and CrossFire options whereby two graphics playing cards are linked collectively. (In these instances, you don’t get twice the efficiency – the uptick could also be a lot lower than that, and different points can crop up too).

Briefly, it’s a thorny conundrum to deal with, and RedGamingTech asserts that they’re ‘fairly assured’ AMD has deserted the 2 GCD configuration (which was also rumored to be for Navi 32, by the way), and can now run with a single GCD. RedGamingTech does make it clear that they’re not sure, although, and cautions towards being too certain on this level. And certainly another leakers disagree that AMD is swerving away from the 2 GCD design for Navi 31.

Coreteks argues that AMD is sticking to the beforehand rumored plan, asserting that the variety of patents the corporate has relating to a brand new design with a number of GPU chips suggests that is the route Workforce Purple intends to take. And likewise that having a single GPU with the theorized six reminiscence chiplets doesn’t make sense from a latency viewpoint (an vital consideration for gaming efficiency).

What all this underlines is how unsure the rumor mill is even at this comparatively late stage of improvement for RDNA 3 graphics cards. The playing cards might be out in round 4 months, in spite of everything, if hypothesis on the launch timeframe proves appropriate, and it nonetheless isn’t clear whether or not the elemental design for the next-gen will sport a number of GPUs or not. All we are able to do is watch this house in the meanwhile.

Regardless of the case relating to the precise design, all of the {hardware} leakers expect a robust flagship from AMD, and one that could well run rings around Nvidia’s next-gen Lovelace prime canine for power-efficiency (with Workforce Inexperienced rumored to be going very heavy on the facility utilization).

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