"Why is this article talking about PCI-Express v4.0 like it's ancient tech? IIRC, it was first available (for AM4) on the X470 platform. It's still blazingly fast and I know that because my gaming NVMe drives are just PCI-Express v3.0 and they're more than fast enough to reduce load times to a few seconds. Let's be honest, does anything exist yet that's fast enough to be bottlenecked by PCI-Express v4.0? I really don't think so, at least, not in the consumer market.
It could be that PCI-Express v5.0 would be nothing more than an added expense that pays no dividends so it would be smart not to bother with it yet. It's like, I was personally not the least bit impressed with the fact that the Radeon RX 7000-series has DP2.1 while the GeForce RTX 4000-series doesn't. Since neither series of cards is even remotely potent enough to use that kind of bandwidth, there was no point to it.
If AMD incurred any extra expense in supporting DP2.1, it was nothing more than a dumb marketing stunt that paid no real dividends. If it wasn't more expensive to implement, then it was a mistake for nVidia to not do it.
Now, I may think that Jensen Huang is human garbage but he's not the least bit stupid. If nVidia didn't implement DP2.1, it's probably because it did cost more and wasn't worth it.
Complaining about not using a cutting-edge technology that's probably expensive and has no real added benefit is both childish and stupid so I really don't care."
I agree completely on your comments about PCIe 4 vs PCIe 5. There's basically nothing that needs the bandwidth yet that could be fit inside a laptop right now.
Now with DP 2.1, I could see that as being a part that AMD could have decided to engineer now because they had the resources and keep the design stable for a few generations of GPUs, and Nvidia may have decided to put the effort into something else and stick with DP 2.0 instead for the time being. I could see either decision as being correct for either company depending on the situation.
And I will learn how to use quotes in this thing eventually.