You were talking as if Nvidia had little to no experience working with multi GPU communication when they are basically the world leader, albeit off die with a technology such as NV Link. You're also assuming AMD have some sort of lead in this field by equating their efforts on their CPU parts being easily transferable to their GPU parts, which isn't the case any more so than Nvidia's own depth of experience with scaling and linking their GPUs together successfully. This was the point that apparently went over your head.
Let's see your source. Let's see all this interposed GPU hardware AMD has been churning out to give them the lead? Rubbish! That's what your claims were originally.
Anyone can dump multiple dies on an MCM, it's whether it is actually any good and practical for that given application. I direct you once again to your supposition AMD's work on infinity fabric actually crosses over easily to their GPU division. It's a very different proposition. The evidence is they aren't anywhere close to producing ONE good high end graphics core, let alone nailing together several of them to work well in a windows environment!
Resources were but one factor, not THE deciding factor which your reply seized upon. If anyone has the existing viable graphics core designs, the experience linking multiple GPU dies, understanding of the interconnection requirements, strong ties with the fab that has worked heavily on TSV technology and finally the resources to put it all together it's Nvidia.
Not AMD and their tinpot graphics arm as per your amusing suggestion here. Anything else?
Once again, off topic. SLI /= Inter-die connect. You aren't even remotely close.
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Let's see your source. Let's see all this interposed GPU hardware AMD has been churning out to give them the lead? Rubbish! That's what your claims were originally."
This is the part where you create a scarecrow argument because you can't cite a source for your GPU's communicate much more inter-die than CPUs comment, predictable behavior.
"Anyone can dump multiple dies on an MCM, it's whether it is actually any good and practical for that given application."
Anyone? Yeah you only have to design your entire architecture around it. Once again, you are completely wrong. It takes years to develop an architecture, which has to be targeting an MCM design from the start. It's why Intel and Nvidia just can't revise their chips to work with MCM.
"The evidence is they aren't anywhere close to producing
ONE good high end graphics core, let alone nailing together several of them to work well in a windows environment!"
What evidence? You can't even cite your ambiguous non-numbers, let alone back up this charade of a statement. Please show me the evidence.
FYI MCMs don't use use multiple high end chips, that would be counter to the benefits in the first place. One advantage of an MCM is using multiple smaller chips. If you didn't know that MCMs use smaller chips you haven't even payed attention to the surface details of AMD's ryzen launch, let alone know the technical details of MCM design.
"Resources were but one factor, not THE deciding factor which your reply seized upon"
You were the one who said
"You would have to say it's Nvidia with the resources to push anything like that first."
Now you are just trying to add things after the fact to take back your blemish.
"If anyone has the existing viable graphics core designs, the experience linking multiple GPU dies, understanding of the interconnection requirements, strong ties with the fab that has worked heavily on TSV technology and
finally the resources to put it all together it's Nvidia."
Well first, none of what you listed means jacks squat to MCM design except interconnection requirements, which is just another one of your vague "pearls of wisdom". The fact is Nvidia doesn't understand the requirements of connecting two dies together, otherwise they would have a product. Therefore they have zero MCM experience and any answer to the contrary is factually incorrect.
"the experience linking multiple GPU dies"
No, they don't. NVLink is not a Die-Die technology. It goes through the CPU.
"strong ties with the fab that has worked heavily on TSV technology"
Means nothing