Whether or not Nvidia really has a chiplet-based RTX 5090 'under investigation' its GPU future has to be multi-chip

pcgamer.com:

There is the suggestion going around that the green team is testing out a chiplet version of its top GeForce graphics card for the future Nvidia Blackwell GPU generation. This comes hot on the heels of another rumour stating explicitly that the Blackwell architecture is going to be used for data center silicon, too, and that this successor to Hopper will definitely be a multi-chip module GPU.

We're at least a year out from the release of the Nvidia RTX 5090, but that's not going to stop the rumour mill going into overdrive every time there's the faintest whiff of next-gen silicon in the air. And that means we have to take every rumour with the requisite measure of salt given that at this point it's all largely guesswork, conjecture, and hearsay.

The idea of Nvidia finally making the switch over to a chiplet design for its server-level GPUs doesn't surprise, and indeed sounds like a smart plan. The sort of compute-based workloads necessary in data centers can be fairly straightforward to run across multiple graphics cards, so the idea that they could run on multiple compute chiplets within a single GPU package would make sense.

There are also some guessed-at potential RTX 5090 specs floating about, but they're so thin as to be almost transparent. The really intriguing question is around whether Nvidia can make GPU chiplets work in the gamer space. AMD has already nominally made the move to chiplets for its own high-end graphics cards, but the Navi 31 and Navi 32 chips only utilise a single compute die (the GCD) within the package, so games effectively still only have to look at one GPU. 

There are reports this will change with subsequent RDNA 4 chips, though, with rumours claiming AMD is going to abandon chiplets and even